hay Copy link • hay: fēnum or foenum (strictly, hay-grass): to cut h., f. demetere, caedere, Col. 2, 19; secare, Cato in Plin. 18, 28, 67, § 259: Plin.: to dry or turn h., f. siccare, convertere, Col. l. c.. to get in h., f. colligere, sub tectum congerere, Col. l. c. Phr.: to make h. while the sun shines, perh. occasionem amplecti, arripere: v. opportunity.