Dealing
来自Big Physics
Old English dǣlan ‘divide’, ‘participate’, of Germanic origin; related to Dutch deel and German Teil ‘part’ (noun), also to dole1. The sense ‘divide’ gave rise to ‘distribute’, hence deal1 (sense 1 of the verb, sense 4 of the verb); the sense ‘participate’ gave rise to ‘have dealings with’, hence deal1 (sense 2 of the verb, sense 3 of the verb).
wiktionary
From Middle English delynge, from Old English dǣlung; equivalent to deal + -ing.
