Where does “βακτήριον” come from?

βακτήριον (Ancient Greek) comes from Ancient Greek βακτηρία, from Proto-Indo-European baḱ- — club, pointed stick, peg; pointed stick, peg.

βακτήριον (Ancient Greek): Synonym of βακτηρία

Definitions

βακτήριον traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Ancient Greek	βακτηρία	rod, staff, cane; baton
2	Proto-Indo-European	baḱ-	club, pointed stick, peg; pointed stick, peg

Step	Language	Word	Meaning
1	Ancient Greek	βάκτρον	staff, walking stick; staff, cudgel; stick,...