Where does “bit” come from?

bit (Middle English) comes from Old English byt, from Proto-Germanic *buttjā, from Latin buttia, from Ancient Greek βούττιον, from Ancient Greek -ῐον, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “bit”, step by step

bit traces back through 3 separate lines of ancestry.

via Old English byt

Step	Language	Word	Meaning
1	Old English	byt	bottle, flagon
2	Proto-Germanic	*buttjā	—
3	Latin	buttia	cask, barrel
4	Ancient Greek	βούττιον	—
5	Ancient Greek	-ῐον	diminutive suffix; "suffix forming...
6	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

via Old English bytt

Step	Language	Word	Meaning
1	Old English	bytt	small piece of land

via Old French boute

Step	Language	Word	Meaning
1	Old French	boute	cask

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐον →Every word from Ancient Greek βούττιον →