χῶσις

εως, ἡ
A. heaping up, esp. of earth, raising a mound or bank, esp. against a city, Th. 2.76.
2. filling up, blocking by carth thrown in, χ. τῶν λιμένων Id. 3.2; τάφρου D.H. 5.41.
3. embanking, τοῦ θεάτρου IG 9(2).522.26 (Larissa, iii/ii B. C.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project