BT Ḥul 50b(40) :כדעיילין תלת קשייתא בצפא בדוחקא בלא צפא ברווחא‏ : when three date-stones can enter with difficulty when they are in a row, easily when not in a row
See the entire entry for ṣp#2 n.m. row

BT Ḥul 50b(40) :כדעיילין תלת קשייתא בצפא בדוחקא בלא צפא ברווחא‏ : (the hole is such) that three (date) stones can fit into it in a row tightly, not in a row with ease
See the entire entry for qšytˀ n.f. hard plant seed