Where does “Koulma” come from?

Koulma (Breton) comes from Breton Koulm, from Latin columba, from Ancient Greek κόλυμβος, from Ancient Greek κολυμβάω — to dive, plunge; dive, plunge headlong, swim; I...

Ancestry of “Koulma”, step by step

Koulma traces back through two separate lines of ancestry.

via Breton Koulm

Step	Language	Word	Meaning
1	Breton	Koulm	—
2	Latin	columba	dove, pigeon; a term of endearment
3	Ancient Greek	κόλυμβος	Alternative form of κολυμβῐ́ς; Alternative form...
4	Ancient Greek	κολυμβάω	to dive, plunge; dive, plunge headlong, swim; I...

via Breton a

Step	Language	Word	Meaning
1	Breton	a	—

Every word from Ancient Greek κολυμβάω →Every word from Ancient Greek κόλυμβος →Every word from Latin columba →