"harsh, creaking noise, shrill sound," 1630s, from Latin stridor, from stridere (see strident).
Entries linking to stridor
strident adj.
1650s, from French strident (16c.) and directly from Latin stridentem (nominative stridens), present participle of stridere "utter an inarticulate sound, grate, screech," from PIE *(s)trei-, possibly of imitative origin (source also of Greek trismos "a grinding, scream"). Related: Stridently; stridence; stridency.