Meaning

noun the edge of a piece of cloth; especially the finished edge that has been doubled under and stitched down

noun the utterance of a sound similar to clearing the throat; intended to get attention, express hesitancy, fill a pause, hide embarrassment, warn a friend, etc.

verb fold over and sew together to provide with a hem

originFrom Ottoman Turkish حمص (Hıms) and Arabic حِمْص (Ḥims), ultimately from Ancient Greek Ἔμεσᾰ (Émesă), ultimately from Aramaic חֲמָת (Ḥamāth, “hindrance, frustration, fortress”) + צובָא (Ṣōwḇā, “near, surrounding, station”).

Etymology from Wiktionary, CC BY-SA 3.0