دُعَابَةٌ

A jesting, or joking; (S, Msb;) such as is deemed pleasing, or facetious: (Msb:) or play, or sport; (A, K;) as also دُعْبُبٌ: (K:) both of which words are also used as inf. ns.: and the latter is also used as an epithet; [as explained below, voce دَاعِبٌ;] apparently in an intensive sense [because originally a verbal noun]. (MF.) And Speech that causes laughter. (Har p. 18.)

Also Stupidity, or foolishness. (K.)