An Etymological Dictionary of Astronomy and Astrophysics

A movable, sometime blinking, indicator on a computer screen identifying the point that will be affected by input from the user (OxfordDictionaries.com).

Etymology (EN): From L. cursor “runner,” also “errand-boy,” from curs-, p.p. stem of currere “to run,” → current.

Etymology (PE): Jâbân, literally “position/place keeper,” or “position/place maker,” from jâ, → place, + -bân a suffix denoting “keeper, guard,” sometimes forming agent nouns or indicating relation, → host.