onfall noun 3verb 2forms 4 noun3 •A falling on or upon; an attack, onset, or assault.Are we to have military onfall; and death also by starvation? — 1837 •A fall of rain or snow. •The fall of the evening. verb2 •To fall on or upon.'the temple caught fire from the onfallen lightning' [...] — 1992 •To assault, attack. formsonfell · onfallen · onfalling · onfalls
