Meaning of SUPERVENE UPON

WordNet Dictionary
	Definition:		[v]  take the place or move into the position of; "Smith replaced Miller as CEO after Miller left"; "the computer has supplanted the slide rule"; "Mary replaced Susan as the team's captain and the highest-ranked player in the school"
	Synonyms:		replace, supersede, supplant
	See Also:		come after, deputise, deputize, follow, oust, stand in, step in, substitute, succeed, usurp