Where does “calamus” come from?

calamus (English) comes from Latin calamus, from Ancient Greek κάλαμος, from Proto-Indo-European ḱolh₂-m-, from Proto-Indo-European kolH- — to raise, to lift, to build; awn.

calamus (English): The sweet flag, "Acorus calamus"; A quill; the...

Definitions

The sweet flag, "Acorus calamus"; A quill; the...

Ancestry of “calamus”, step by step

Step	Language	Word	Meaning
1	Latin	calamus	a reed, cane; an object made from a reed, such as...
2	Ancient Greek	κάλαμος	a reed; anything made of reed or cane;...
3	Proto-Indo-European	ḱolh₂-m-	—
4	Proto-Indo-European	kolH-	to raise, to lift, to build; awn

Every word from Proto-Indo-European kolH- →Every word from Proto-Indo-European ḱolh₂-m- →Every word from Ancient Greek κάλαμος →