dom

Etymology 1

Clipping of dominator or dominate.

noun

1. A dominator (in sadomasochistic sexual practices), especially a male one.

verb

1. (slang, online gaming or BDSM) To dominate.
   Nola is actually "Nurse Nola," a dominatrix who specializes in medical role playing. […] "After that," she continues, "I started domming, which I did for a long time, but have never liked much." 2006, Bitch: feminist response to pop culture, numbers 31-34

Etymology 2

noun

1. A title anciently given to the pope, and later to other church dignitaries and some monastic orders.

Etymology 3

Borrowed from Portuguese dom. Doublet of domine, dominie, dominus, and don.

noun

1. A title formerly borne by member of the high nobility of Portugal and Brazil