1. to represent fictitiously; put on an appearance of.
2. to invent fictitiously or deceptively, as a story or an excuse.
3. to imitate deceptively.
4. to make believe; pretend.
Etymology: Middle English fei(g)nen < Old French feign-, present stem of feindre < Latin fingere, “to shape, invent, feign”.
[Antonio Javier Caparo - The Shifter]