συγκαταπίπτω

A. fall down along with, ς. ταῖς τύχαις let one's spirits fall with one's fortunes, D.H. Isoc. 9; ταῖς διανοίαις become despondent too, Onos. 13.2; fall together in battle, J. AJ 7.7.1; in wrestling, Gal. Nat.Fac. 3.3.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project