
English word hap comes from Proto-Indo-European *kob-, and later Proto-Germanic *hampą (Good luck, chance. Happiness.)
*kob- (Proto-Indo-European)
*hampą (Proto-Germanic)
Good luck, chance. Happiness.
happ (Old Norse)
Good luck.
happe (Middle English)
hap (English)
(intransitive, literary) to happen; to befall; to chance.. (transitive, literary) To happen to. (archaic) That which happens; an occurrence or happening, especially an unexpected, random, chance, or fortuitous event; chance; fortune; luck.