nătātĭo — Lewis & Short
nătātĭo, ōnis, f.id.,
I a swimming.
I Lit.: habeant igitur sibi arma, sibi equos ... sibi pilam, sibi natationes atque cursus. * Cic. Sen. 16, 58:
frigidae natationes,Cels. 3, 24 fin.—
II Transf., a place for swimming, swimming - place, Cels. 3, 27, 1; Cael. Aur. Tard. 1, 1.