1 noun influencespreagadh masc c m uugach masc1 c m uit gave me the impetus to continuespreag sé mé chun dul ar aghaidh, thug sé ugach dom leanúint ormthat was the impetus behind the campaignis é sin a spreag an feachtasto lose impetusfuinneamh a chailleadh2 noun PHYS forcefuinneamh gluaiseachta c m u