sacrum

Spelling & Dictionary Insight

The English entry for sacrum is 6 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈsækɹəm/. Corpus data places it at rank #63,219 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "A large triangular bone at the base of the spine, located between the two ilia (wings of the pelvis) and formed from vertebrae that fuse in adulthood.".

No frequent misspelling variants are recorded for sacrum in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Latin os sacrum (“holy bone”), a calque of Ancient Greek ἱερὸν ὀστέον (hieròn ostéon). Apparently so called either because the sacrum was the part of the animal offered in sacrifice or because of a putative belief that it is where a person's soul resid… 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 sacrum, spelled S-A-C-R-U-M, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.