Where does “digamma” come from?

digamma (Latin) comes from Ancient Greek δίγαμμα, from Ancient Greek δί-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

Ancestry of “digamma”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	δίγαμμα	the letter Ϝ
2	Ancient Greek	δί-	Twice, double
3	Ancient Greek	διά	throughout
4	Proto-Indo-European	dwís	twice, doubly; in two
5	Proto-Indo-European	dwóh₁	two

Words derived from “digamma”

digamma
digamma

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwís →Every word from Ancient Greek διά →