#succinct

early 15c., succincte, "engirdled, having one's waist encircled," from Latin succinctus"contracted, short, concise," also "prepared, ready," past participle of succingere"tuck up; gird from below," also, in transferred use, "surround; furnish, provide, equip." This is from assimilated form of sub "up from under" (see sub-) + cingere"to gird" (see cinch (n.)). The Latin sense development is perhaps "tuck up," hence "gird about (with armor and arms)," hence "be armed, be prepared;" or perhaps the notion is "tuck up loose clothes or tighten one's belt for action."

The sense of "characterized by brevity, concise, compressed into a small compass or few words" is recorded in English by 1530s (implied in succinctly). Also of garments, "girdled" (c. 1600). Related: Succinctness.

somnambulist (English) [sɒmˈnæmbjʊlɪst] a person who walks around, eats, or performs other motor acts while asleep; a sleepwalker