Why Is English Spelling and Vocabulary So Strange?

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November 12, 2025
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WIRED.jp
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Why Is English Spelling and Vocabulary So Strange?

TL;DR

English looks irregular because its modern forms preserve layers of Old English grammar, later sound changes, and words borrowed from languages such as French and Latin. Plurals, silent letters, pronouns, synonyms, and idioms often make sense once their histories are traced, while language may influence thought to some extent without completely determining what people can understand.

Transcript

Hi, I'm Steven Turtton and this is Ethmology Support. First question, Samuel M80056720 asks, I have a semi-serious question for ethmologists. If feet is the plural for foot, why is beat not the plural of boot? Is it because of the vegetable? Foot belongs to a category of words that derive from old English in which to make the plural you change the ... Read More

Key Insights

  • English plural forms preserve multiple historical systems. Foot, tooth, goose, and mouse form plurals through internal vowel changes inherited from Old English, while boot was borrowed from French during Middle English and therefore takes the increasingly dominant default plural ending.
  • Silent letters are evidence of pronunciation changes that spelling did not follow. The gh in through, thought, and night represented a sound once pronounced in Old and Middle English, but the sound disappeared while established spellings remained through linguistic inertia.
  • The modern meaning of clue developed from a ball of thread. The word became associated with the Greek story of Theseus using thread to navigate the Minotaur's labyrinth, leading clue to mean something that guides a person toward solving a problem.
  • English question words share an ancient interrogative source. Why, who, where, and when ultimately relate to a reconstructed Proto-Indo-European stem resembling kwi, which also survives in question words in languages such as French and Spanish.
  • Children contains two historically stacked plural endings. An Old English plural developed into childer during Middle English, after which speakers added the n ending also seen in oxen because the existing form apparently no longer looked sufficiently plural.
  • Deadline originally referred to a literal and dangerous boundary. During the American Civil War, it marked a prison limit that inmates could not cross without risking being shot, and the term later developed metaphorically into a point of no return and then a due date.
  • True synonyms are rare because apparently similar words usually differ by context. Big works naturally in figurative expressions such as big ideas and big trouble, while large is preferred more narrowly for literal size, despite overlapping with big in other situations.
  • Language does not completely determine thought because people can learn unfamiliar concepts and second languages. A weaker proposal, linguistic relativity, suggests that language may still affect thinking to some extent, and the transcript cites research involving German and Spanish speakers as possible evidence.

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Questions & Answers

Q: Why is feet the plural of foot but boots the plural of boot?

Foot belongs to a group of Old English words whose plurals were formed by changing an internal vowel. Related surviving examples include tooth and teeth, goose and geese, and mouse and mice. Boot entered Middle English from French, so it did not inherit that pattern and instead received the default s ending that came to dominate English plural formation.

Q: Why does English have silent letters such as gh?

Silent letters often remain because pronunciation changed while spelling did not. The gh in words such as through, thought, and night once represented a sound pronounced in Old and Middle English. That difficult sound eventually disappeared, but the written forms persisted through inertia. The transcript also notes that ease of articulation commonly triggers sound changes across English and other languages.

Q: Where does the modern meaning of clue come from?

Clue originally meant a ball of thread. During Middle English, the word became associated with the Greek story of Theseus, who unspooled thread while entering the Minotaur's labyrinth and followed it to find his way out. Through that association, clue came to mean something that leads a person toward the solution of a problem, its common modern meaning.

Q: Why do English question words often begin with wh?

Question words such as why, who, where, and when trace back to a Proto-Indo-European interrogative stem resembling kwi. Variants of that ancient element were used to create question words and survive in several modern languages. In English, the relevant letters were originally ordered and pronounced as hw, which explains why some older speakers place the h sound before the w.

Q: Why is the plural children instead of childs?

Child comes from Old English, which used several methods to form plurals. One historical plural developed into childer during Middle English. Speakers later added an n ending, like the one in oxen, apparently because childer no longer seemed sufficiently plural. Children therefore contains two plural markers stacked together, making it historically comparable to adding two plural endings to one noun.

Q: Where did the word deadline originate?

Deadline began as a literal boundary around a prison during the American Civil War. Prisoners were forbidden to cross it because doing so put them at risk of being shot. The term later acquired a metaphorical meaning, a point of no return. From that figurative use, it developed into the familiar meaning of the date or time by which work must be completed.

Q: Why does English use you instead of separate formal and informal pronouns?

English originally distinguished singular thou from plural you. Under French influence, plural you also became a polite way to address one person. Once you signaled respect, using thou could imply disrespect, so thou gradually disappeared from ordinary use. English was left with you for both singular and plural reference, prompting regional plural forms such as y'all, yinz, and yous.

Q: Does the language people speak control how they think?

Strong linguistic determinism, the claim that language fundamentally controls and limits thought, is rejected in the transcript. If it were correct, people could not learn a new concept without already possessing its word, nor learn another language unless its vocabulary precisely matched their first language. Linguistic relativity makes the weaker claim that language may influence thought to some extent, for which some evidence exists.

Summary & Key Takeaways

  • English irregularities often preserve earlier grammatical systems. Foot changes to feet because it follows an Old English vowel-changing plural pattern, while the French-derived boot takes the later default ending. Children is especially unusual because an older plural form acquired another plural ending, effectively stacking two markers in one word.

  • Spelling and vocabulary record changes that pronunciation no longer reveals. Silent gh once represented a pronounced sound, while clue shifted from meaning a ball of thread to meaning guidance toward a solution through association with Theseus and the labyrinth. Salary likewise traces back to a Latin term connected with buying salt and household goods.

  • English also reflects social change, borrowing, and figurative extension. Respectful singular you displaced thou, borrowed Germanic, French, and Latin terms created near-synonyms with different usage patterns, and deadline moved from a dangerous prison boundary to a due date. Language can influence habitual thought, but it does not completely control which concepts people can learn.


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