Latin word laudare comes from Proto-Indo-European *leh₁wdʰ-, and later Latin laus (Fame. Praise, glory.)
*leh₁wdʰ- (Proto-Indo-European)
laus (Latin)
Fame. Praise, glory.
laudo (Latin)
I commend, honor. I compliment. I eulogize. I praise, laud, extol.