10 letters · 15 points in Scrabble
noun one who supervises or has charge and direction of
noun a program that controls the execution of other programs
originAttested since the 15th century C.E.; from Middle English supervisor, supervisour, supervysor, supervysour, from Latin supervīsor, from supervideō, in turn from super + videō. By surface analysis, supervise + -or.
Etymology from Wiktionary, CC BY-SA 3.0