The word for today is…
clarity (noun) – 1. Clearness of appearance.
2. Clearness of thought or style; lucidity.
Source : The Free Dictionary
Etymology : Circa 1300, clarte, clerte “brightness, radiance; glory, splendor,” from Old French clerte, clartet (Modern French clarté) “clarity, brightness,” from Latin claritas “brightness, splendor,” also, of sounds, “clearness;” figuratively “celebrity, renown, fame,” from clarare “make clear,” from clarus “clear”.
Modern form is first attested early 15th century, perhaps a reborrowing directly from Latin. Original senses are obsolete; meaning “clearness” (of colour, judgment, style, etc.) is from mid-15 th Century.
