from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To joke or quip.
- transitive v. To make sport of.
- n. A joke or quip.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To jest; play tricks; joke; jeer.
- v. To mock; deride; gibe; trick; befool.
- n. a joke
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To jest; to play tricks; to jeer.
- transitive v. To mock; to trick.
from The Century Dictionary and Cyclopedia
- To jest; joke.
- To deride; gibe; mock; befool.
- n. A joke; jest; gibe.
- n. A trick; wile; cheat.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a humorous anecdote or remark intended to provoke laughter
Middle English japen, probably from Old French japer, to yap, chatter, nag, of imitative origin.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English japen ("to joke, play tricks"), of uncertain origin. Perhaps from Old French japer ("to bark, howl, scream") (possibly conflated with Old French gaber ("to mock, deride"), see gab), related to Old Provençal japar, jaupar ("to bark, yelp, yap"), probably of Germanic origin, related to Old Saxon galpōn ("to cry loudly, make a noise, brag") (Low German galpen ("to bark, howl, scream")), Middle High German gelpfen ("to scream, bark, boast, proclaim"), Old Norse gjálpa ("to yelp") (Swedish dialectal galpa ("to cry, screech")). More at yelp, yawp, yap. (Wiktionary)