n. & v.
n. 1 a crowd of people. 2 (often foll. by of) a multitude, esp. in a small space.
v. 1 intr. come in great numbers (crowds thronged to the stadium). 2 tr. flock into or crowd round; fill with or as with a crowd (crowds thronged the streets).
[ ME thrang, throng, OE gethrang, f. verbal stem thring- thrang- ]