Where does “barotrauma” come from?

barotrauma (Spanish) comes from Spanish baro-, from Ancient Greek βάρος, from Ancient Greek βαρύς, from Proto-Hellenic gʷarus, from Proto-Indo-European gʷréh₂us, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

barotrauma (Spanish): barotrauma

Definitions

barotrauma

Ancestry of “barotrauma”, step by step

Step	Language	Word	Meaning
1	Spanish	baro-	baro
2	Ancient Greek	βάρος	weight, burden, load; grief, sorrow; plenty
3	Ancient Greek	βαρύς	heavy, weighty; heavy, burdensome, oppressive;...
4	Proto-Hellenic	gʷarus	heavy
5	Proto-Indo-European	gʷréh₂us	heavy
6	Proto-Indo-European	-us	Forms adjectives from Caland system roots

Every word from Proto-Indo-European -us →Every word from Proto-Indo-European gʷréh₂us →Every word from Proto-Hellenic gʷarus →