1650s, from French simplifier "to make simpler" (15c.), from Medieval Latin simplificare "to simplify," from Latin simplex "simple" (see simplex) + combining form of facere "to make" (from PIE root *dhe- "to set, put"). Meaning "to make easier to do" is from 1759. Related: Simplified; simplifying.

this move will simplify our lives

We had to simplify the instructions

simpleton

simplex

simpliciter

simplicity

simplification

simplify

simplism

simplistic

simply

simulacrum

simular