Dictionary
1erstwhile
adverb erst·while \ˈərst-ˌ(h)wī(-ə)l\
Definition of ERSTWHILE
: in the past : formerly <cultures, erstwhile unknown to each other — Robert Plank>
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First Known Use of ERSTWHILE
1569
2erstwhile
adjective
: in the past
Full Definition of ERSTWHILE
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First Known Use of ERSTWHILE
1903
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