Meaning of overween in English:

overween

Pronunciation /ˌəʊvəˈwiːn/

verb

  • 1To have excessively or unreasonably high expectations; to be conceited, arrogant, or presumptuous; to be too self-confident.

  • 2rare To overrate or think too highly of. Also reflexive: to have too high an opinion of oneself.

Origin

Middle English; earliest use found in Ayenbite of Inwyt. From over- + ween.