Wiktionary
onfall
n. 1 A falling on or upon; an attack, onset, or assault. 2 A fall of rain or snow. 3 The fall of the evening. vb. 1 (context transitive English) To fall on or upon. 2 (context transitive English) To assault.
Usage examples of "onfall".
Orwell down to the foray to Paris, and that is clear twenty years, there was not a skirmish, onfall, sally, bushment, escalado or battle, but Sir Nigel was in the heart of it.
Was it not at the onfall at Nurnberg, when I led the right and you the left wing of the heavy horse?
On January 6th the Boers delivered their great assault upon Ladysmith--an onfall so gallantly made and gallantly met that it deserves to rank among the classic fights of British military history.