[ oh-ver-ween ]
/ ˌoʊ vərˈwin /
verb (used without object) Archaic.
to be conceited or arrogant.
Related formso·ver·ween·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for overween
I can more easily suppose that all the Sons of Genius "overween" in this direction.