laetĭtūdo — Lewis & Short
laetĭtūdo, ĭnis, f.id., ante-class. for laetitia,
I joy: me excitasti ex luctu in laetitudinem, Att. ap. Non. 132, 12:
affecti laetitudine,id. ib. 13 (Trag. Fragm. v. 61, 259 Rib.).