Witty \WIT-ee\ , adjective;
1. Possessing wit in speech or writing; amusingly clever in perception and expression
2. Characterized by wit
3. British dialect: Intelligent; clever
The origin of witty is Old English wittig ("clever, wise") from wit + -y ("intellect" + "full of characterized by"). Old English wit is the forebear of the English noun wit, although the more common Old English form was gewit from Proto-Germanic *witjan. The Proto-Indo-European source was *woid-, *weid-, or *wid- which meant "to see" or metaphorically "to know." The verb wit comes from a slightly different but related Old English word, witan ("to know").