Dictionary

fastigiate

adjective fas·ti·gi·ate \fa-ˈsti-jē-ət\

Definition of FASTIGIATE

:  narrowing toward the top; especially :  having upright usually clustered branches <fastigiate trees>

Origin of FASTIGIATE

probably from New Latin *fastigiatus, from Latin fastigium — more at bristle
First Known Use: 1662

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