mastiff

Spelling & Dictionary Insight

The English entry for mastiff is 7 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈmæstɪf/. Corpus data places it at rank #48,344 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "One of an old breed of powerful, deep-chested, and smooth-coated dogs, used chiefly as watchdogs and guard dogs.".

Our Hunspell-derived misspelling index lists 9 documented wrong-spelling variants for mastiff, with forms such as "amstiff", "masitff", and "masstiff". 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 1 confusable-pair relationship, "massif", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English mastif, mastyf, an aberrant derivation (with influence from Old French mestif) from Old French mastin (modern French mâtin), from Vulgar Latin *mansuetinus (“tamed (animal)”), from Latin mansuetus (“tamed”). 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 mastiff, spelled M-A-S-T-I-F-F, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.