12 letters · 19 points in Scrabble
noun skill in selling; skill in persuading people to buy
originEtymology tree English sales Proto-Indo-European *mon- Proto-Germanic *mann- Proto-West Germanic *mann Old English mann Middle English man Middle English -man English -man English salesman Proto-Germanic *skapjaną Proto-Germanic *-skapiz Proto-West Germanic *-skapi Old English -sċiepe Middle English -schipe English -ship English salesmanship From salesman + -ship.
Etymology from Wiktionary, CC BY-SA 3.0