振(ふ)るto assume the air of ..., to behave like ..., to put on airs, to be self-important

Suffix, う-verb (る)

1. 1.

   to assume an air of ..., to act ..., to affect ..., to pose as ..., to behave like ..., to pretend to be ...

   Usually written using kana alone, after a noun, adjectival noun or adjective stem

う-verb (る), Intransitive verb

1. 2.

   to put on airs, to be self-important

   Colloquial, Usually written using kana alone