Other forms: simplified, simplifying, simplifies
To simplify is to make something easier to understand or do. Simplify the process, simplify the language, oversimplify.
It means removing what is not needed rather than leaving things out that are, which is the whole difference between simplifying and oversimplifying. In mathematics, to simplify an expression is to reduce it to its plainest equivalent form. Note simplification; and that things should be made as simple as possible but no simpler, which is attributed to Einstein and probably paraphrased.
1verbsimplifyTo make something easier to understand or do.
“The council has simplified the form, so it now takes five minutes to fill in.”
simplify is a making simpler.
French simplifier is simple plus -ify, from Latin simplex, single-fold — sim plus plicare, to fold. Complex and duplicate come from the same folding.
Proto-Indo-European
*dʰeh₁-
French
simplifier
English, today
simplify
From the French simplifier, equivalent to simple + -ify.
Etymology from Wiktionary, CC BY-SA