Dictionary

umpteen

adjective ump·teen \ˈəm(p)-ˌtēn, ˌəm(p)-ˈ\

: very many

Full Definition of UMPTEEN

:  very many :  indefinitely numerous
ump·teenth \-ˌtēn(t)th, -ˈtēn(t)th\ adjective
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Origin of UMPTEEN

blend of umpty (such and such) and -teen (as in thirteen)
First Known Use: 1918

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