'Cricket' (the insect) is pure onomatopoeia — Old French named it for the chirp it makes.
A leaping insect of the order Orthoptera, related to grasshoppers, the males of which produce a characteristic chirping sound by rubbing their forewings together.
From Old French 'criquet' (cricket), an onomatopoeic formation imitating the insect's chirping call — from the verb 'criquer' (to creak, to crackle). The word is ultimately imitative of the sharp, repetitive stridulation sound produced by male crickets rubbing their forewings. The Proto-Germanic root *krik- (to make a sharp sound) may also be related. The insect was named, across many languages, for the sound it makes — one
The word 'cricket' for the insect is pure onomatopoeia — it imitates the chirping sound. The sport called 'cricket' is likely from a completely different source, probably Old French 'criquet' (a goal post or stick), making the two 'crickets' false friends sharing a coincidental form.