CHIRK is validvalid

cheerful [adj CHIRKER, CHIRKEST] / to make a shrill noise [v CHIRKED, CHIRKING, CHIRKS]

6,866 of 196,601 in NWL2023·also valid in CSW24

(Scots) to squeak [v -ED, -ING, -S] / cheerful [adj CHIRKER, CHIRKEST]