Clarify
Middle English (in the senses ‘set forth clearly’ and ‘make pure and clean’): from Old French clarifier, from late Latin clarificare, from Latin clarus ‘clear’.
wiktionary
From Middle English clarifien, from Old French clarifiier, from Latin clārificō, clārificāre; clārus(“clear”) + faciō, facere(“make”). Semantically clear + -ify
etymonline
clarify (v.)
early 14c., "make illustrious, glorify, make known" (a sense now obsolete), from Old French clarifiier "clarify, make clear, explain" (12c.), from Late Latin clarificare "to glorify," literally "to make clear," from Latin clarificus "brilliant," from clarus "clear, distinct" (see clear (adj.)) + combining form of facere "to make, to do" (from PIE root *dhe- "to set, put").
Meaning "make clear, purify" (especially of liquors) is from early 15c. in English. Figurative sense of "to free from obscurity, render intelligible" is from 1823. Intransitive sense of "grow or become clear" is from 1590s. Related: Clarified; clarifying.
