Lucid

Lucid

Adjective · /ˈluː.sɪd/

Definition

Expressed or communicated clearly and easy to understand; thinking or expressing clearly; a lucid interval — a period of sanity or clarity during mental illness or confusion; (poetic) suffused with light, luminous.

Origin

From Latin lucidus (bright, clear, luminous), from lucere (to shine), from lux (light). The same root gives lucent, elucidate, translucent, and the name Lucifer (light-bringer). The word entered English in the late 16th century, initially in its poetic luminous sense and quickly developing the clarity-of-expression sense.