From Old Danish iafn, iæfn, from Old Norse jafn, from Proto-Germanic *ebnaz (“even, level”). Compare Swedish jämn, Norwegian jevn, jamn, Icelandic jafn, English even, Low German even, effen, Dutch even, effen, German eben.
- even, level
- smooth (food or drink: not grainy; having an even texture)
- thick (having a viscous consistency)
- even, regular
- plain, simple
See jævne (“to level, smooth, thicken”).
- imperative of