Colon
mid 16th century (as a term in rhetoric denoting a section of a complex sentence, or a pause before it): via Latin from Greek kōlon ‘limb, clause’.
wiktionary
From Latin cōlon(“a member of a verse of poem”), from Ancient Greek κῶλον(kôlon, “a member, limb, clause, part of a verse”).
From Latin cŏlon(“large intestine”), from Ancient Greek κόλον(kólon, “the large intestine, also food, meat, fodder”).
From French colon.
etymonline
colon (n.1)
"punctuation mark consisting of two dots, one above the other, used to mark grammatical discontinuity less than that indicated by a period," 1540s, from Latin colon "part of a verse or poem," from Greek kōlon "part of a verse," literally "limb, member" (especially the leg, but also of a tree limb), also, figuratively, "a clause of a sentence," a word of uncertain etymology.
The meaning evolved in modern languages from "independent clause" to the punctuation mark that sets it off. In ancient grammar a colon was one of the larger divisions of a sentence.
colon (n.2)
"large intestine," late 14c., from Latin colon, Latinized form of Greek kolon (with a short initial -o-) "large intestine," which is of unknown origin.
