naumăchĭa — Lewis & Short
naumăchĭa, ae, f., = naumaxi/a,
naumachiam commisit,Suet. Claud. 21:
naumachiae spectaculum edere,id. Caes. 44:
naumachiam exhibere,id. Ner. 12; Vell. 2, 56, 1; 2, 100, 2; Mart. Spect. 28, 12: voluptates naumachiae, Vopisc. Aur. 34, 6. —
edidit et navale proelium in veteri naumachia,Suet. Tib. 7; 72; id. Dom. 5.