overween

Meaning

1. To think too highly or arrogantly of (oneself).
2. To make or render arrogant and overweening.
3. To overwhelm.

Etymology

Inherited from Middle English: overwenen

Inherited from Old English: oferwennan

In summary

From Middle English overwēnen (“to be presumptuous, be over-confident; presume”), from Old English oferwennan and oferwenian (“to be proud, become insolent, or presumptuous”), equivalent to over- + ween.