oath

Spelling & Dictionary Insight

The English entry for oath is 4 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈəʊθ/. Corpus data places it at rank #7,587 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 5 documented wrong-spelling variants for oath, with forms such as "aoth", "oaht", and "oathh". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 20 confusable-pair relationships, "OH", "OT", "out", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English ooth, oth, ath, from Old English āþ (“oath”), from Proto-West Germanic *aiþ (“oath”), from Proto-Germanic *aiþaz (“oath”). Cognate with Scots aith, athe (“oath”), North Frisian ith, iss (“oath”), Saterland Frisian Eed (“oath”), West Fris… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is oath, spelled O-A-T-H, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.