depend (v.) Look up depend at Dictionary.com
early 15c., "to be attached to as a condition or cause," a figurative use, from Middle French dependre, literally "to hang from, hang down," from Latin dependere "to hang from, hang down; be dependent on, be derived," from de- "from, down" (see de-) + pendere "to hang, cause to hang; weigh" (from PIE root *(s)pen- "to draw, stretch, spin"). Related: Depended; depending.