Feign
/feɪn/
verb
To make a false show or pretence of; to counterfeit or simulate.
“The pupil feigned sickness on the day of his exam.”
To imagine; to invent; to pretend.
“He feigned that he had gone home at the appointed time.”
To make an action as if doing one thing, but actually doing another, for example to trick an opponent.
Synonyms: front, put on airs