Latin piger

← Old English ġefic (cognate)

← Old English fācen (cognate)

← Middle High German veichen (cognate)

← Proto-Indo-European *peyǵ- (derived)

← Latin pigeō (mention)

→ Esperanto pigra (derived)

→ Italian pigro (learned borrowing)

→ Latin pigro (affix)

→ Latin pigredo (affix)

→ Latin pigritia (suffix)

→ Latin impiger (affix)