From Wiktionary, the free dictionary
Apparently derived from German ich habe die Ehre (“I have the honour”). By surface analysis, איך (ikh) + האָב (hob) + די (di) + ערע (ere, “(Daytshmerish) honour”).
כאַבעדיערע • (khabedyere)
- (Daytshmerish, archaic) hello