festīvĭtas (noun F) : festivus
* Festive gayety, festivity, mirth, merriment, joy. *
* Lit.: jocum, festivitatem, ferias,Plaut. Capt. 4, 1, 3.
* Transf.
* As a word of endearment (Plautinian): mi animule, Mea vita, mea festivitas (for which, shortly after: voluptas mea, meus festus dies),my joy, my delight,Plaut. Cas. 1, 47; 3, 3, 14; id. Poen. 1, 2, 176.—*
* A pleasant or kind demeanor, kindness: mei patris festivitas et facilitas,Ter. Eun. 5, 9, 18; cf. festivus, II. A.
* Of speech, humor, pleasantry, jocoseness (Ciceron.; syn.: facetiae, lepor, sal): cum in illo genere perpetuae festivitatis ars non desideretur,Cic. de Or. 2, 54, 219: festivitate et facetiis C. Julius omnibus praestitit,id. Brut. 48, 177: nec umquam fuit oratio lepore et festivitate conditior (shortly before: faceta et urbana),id. de Or. 2, 56, 227: summa festivitate et venustate,id. ib. 1, 57, 243; id. Inv. 1, 18, 25: imago antiquae et vernaculae festivitatis (corresp. to facetiae and lepores),id. Fam. 9, 15, 2.—In plur.: Gorgias his festivitatibus insolentius abutitur,play of words, witticism,Cic. Or. 52, 176; Gell. praef. § 4.
* Post-class., a festival, feast: festivitas in cunctis oppidis celebranda, Cod. Th. 15, 5, 3; Lampr. Alex. Sev. 63.—In plur.: sollennes, Cod. Th. 6, 8, 1: natalium principis,ib. 6, 4, 30.

s. TLL