feign

verbs

make believe with the intent to deceive
"He feigned that he was ill"; "He shammed a headache"
affect, dissemble, feign, pretend, sham
is derived from
feigning
make a pretence of
"She assumed indifference, even though she was seething with anger"; "he feigned sleep"
assume, feign, sham, simulate
is derived from
feigning