stridulate/ˈstɹɪdjʊleɪt/EtymologyBack-formation from stridulation. (From earlier term stridulous; from Latin strīdulus (“giving a shrill sound, creaking”), from strīdō (“utter a shrill or harsh sound; creak, shriek, grate, hiss”))verbTo make a high-pitched chirping, grating, hissing, or squeaking sound, as male crickets and grasshoppers do, by rubbing certain body parts together.“A window was open, and the crickets were stridulating at an ominous speed in the black motionless foliage.”