Where does “diptongo” come from?

diptongo (Spanish) comes from Late Latin diphthongus, from Ancient Greek δίφθογγος, from Ancient Greek δί-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

diptongo (Spanish): diphthong

Definitions

diphthong

Ancestry of “diptongo”, step by step

Step	Language	Word	Meaning
1	Late Latin	diphthongus	diphthong
2	Ancient Greek	δίφθογγος	with two sounds; a diphthong
3	Ancient Greek	δί-	Twice, double
4	Ancient Greek	διά	throughout
5	Proto-Indo-European	dwís	twice, doubly; in two
6	Proto-Indo-European	dwóh₁	two

Words derived from “diptongo”

diptongar
diptonggo
diptongación

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