the.com/profanity

means Language that shocks or offends by breaking taboos around religion, sex, or bodily functions — the words you reach for when 'oh dear' won't cut it.

from From Latin profanus, literally 'before/outside the temple' — pro- (before) plus fanum (temple, sacred place). To be profane was simply to stand outside the sacred, not yet admitted to holy ground. The word kept that sense of trespass as it drifted from 'not sacred' to 'irreverent toward the sacred' to, eventually, the sailor-mouthed cursing we mean today — the vocabulary of someone who has clearly wandered outside the temple and has no plans to return.