Jastrow: צְרֵדָה

צְרֵדָה (or צְרָדָה) f. (צרד) rough sound, snap (or whistle, v. infra); אצבע צ׳ the snapping finger, middle finger. Yoma I, 7; Tosef. ib. I, 9, expl. אצבע גדולה של ימין the large finger of the right hand. Y. ib. I, end, 39ᵇ רב בפח חונה אמר באצבע צ׳ Rab Ḥ. says, the Mishnah means that the finger is put into the mouth (produce a shrill sound). Bab. ib. 19ᵇ (phonetic play) צ̇ר̇תה דד̇א̇ מאי היא גידל the match to this (the middle finger) [comment.: the nearest to this (the index finger)], what is it? The thumb, i.e. the sound is produced with these two fingers. Tanḥ. Bo 14 עד א׳ צ׳ … אצבע אמצעית up to ‘the snapping finger’, that is the middle finger.