Latin word plus comes from Latvian *bla-, Latin pildit

Detailed word origin of plus

Dictionary entry	Language	Definition
*bla-	Latvian (lav)
pildit	Latin (lat)
*pʰel	Proto-Indo-European (ine-pro)
*pleh₁-	Proto-Indo-European (ine-pro)
*plous	Old Latin (itc-ola)
plus	Latin (lat)	More.

Words with the same origin as plus