Romanian word suplica comes from Latin plica, Latin sub- (Sub-.)

Detailed word origin of suplica

Dictionary entry	Language	Definition
plica	Latin (lat)
sub-	Latin (lat)	Sub-.
supplico	Latin (lat)	I humbly beseech or beg. I pray or supplicate.
souploier	Old French (fro)	(reflexive, se souploier) to submit; to give in; to give up. (transitive) to submit (cause to submit). To implore, to beg. To lower.
supplier	French (fra)	(transitive) to implore, to beseech, to beg.
suplica	Romanian (ron)	To supplicate, beg, beseech, pray humbly.

Words with the same origin as suplica