Caput

The history of some words is a real masterpiece. For instance, kaput. The original word was the Latin "caput" - "a head"; and the way from "a head" to "the end of everything" is rather long.

Source: tatoeba (2964109)

Please remove your caput from your rectum.

Source: tatoeba (9799296)

D. has been engaged, he tells me, through a course of laborious years, in an investigation into all curious matter connected with the two Universities; and has lately lit upon a MS. collection of charters, relative to C⁠⸺, by which he hopes to settle some disputed points—particularly that long controversy between them as to priority of foundation. The ardor with which he engages in these liberal pursuits, I am afraid, has not met with all the encouragement it deserved, either here, or at C⁠⸺. Your caputs, and heads of colleges, care less than any body else about these questions.

Source: wiktionary