
1) Become arrogant, old style 2) To be conceited or arrogant
Found on
https://www.crosswordclues.com/clue/overween

• (v. t.) To think too highly or arrogantly; to regard one`s own thinking or conclusions too highly; hence, to egotistic, arrogant, or rash, in opinion; to think conceitedly; to presume.
Found on
http://thinkexist.com/dictionary/meaning/overween/
O`ver·ween' transitive verb [ Anglo-Saxon
oferw...nian . See
Over , and
Ween .] To think too highly or arrogantly; to regard one's own thinking or conclusions too highly; hence, to egotistic, arrogant, or rash, in opinion; to think conceitedly; to presume. « They that
ove...Found on
http://www.encyclo.co.uk/webster/O/59

to be conceited or arrogant.
Found on
https://www.infoplease.com/dictionary/overween
No exact match found.