Where does “trilaterale” come from?

trilaterale (Italian) comes from Italian laterale, from Latin laterālis, from Latin lātus, from Latin cauda, from Proto-Italic kaudā, from Proto-Indo-European keh₂udeh₂.

trilaterale (Italian): trilateral

Definitions

trilateral

Ancestry of “trilaterale”, step by step

Step	Language	Word	Meaning
1	Italian	laterale	side, lateral
2	Latin	laterālis	Of or belonging to the side; lateral
3	Latin	lātus	wide, broad
4	Latin	cauda	A tail
5	Proto-Italic	kaudā	tail
6	Proto-Indo-European	keh₂udeh₂	—

Every word from Proto-Indo-European keh₂udeh₂ →Every word from Proto-Italic kaudā →Every word from Latin cauda →