Etymology
Advertisement
tonight (adv.)

Old English toniht "in the coming night," from to "at, on" (see to) + niht (see night). As a noun, "in the night after the present day," early 14c. Written as two words until 18c., after which it was to-night until early 20c.

Related entries & more 
Advertisement
sightless (adj.)

"lacking sight, blind," late 13c., from sight (n.) + -less. Also sometimes, mainly in poetry, "invisible, unseeable" (1580s). Related: Sightlessly; sightlessness.

Related entries & more 
nocturnal (adj.)

"of or pertaining to the night, used or done at night," late 15c. (Caxton), from Old French nocturnal "nightly, nocturnal," or directly from Late Latin nocturnalis, from Latin nocturnus "belonging to the night," from nox (genitive noctis) "night," cognate with Old English neaht (see night) + -urnus, suffix forming adjectives of time. Related: Nocturnally. Nocturnal emission "involuntary ejaculation during sleep" is recorded by 1813.

Related entries & more 
vision (n.)

c. 1300, "something seen in the imagination or in the supernatural," from Anglo-French visioun, Old French vision "presence, sight; view, look, appearance; dream, supernatural sight" (12c.), from Latin visionem (nominative visio) "act of seeing, sight, thing seen," noun of action from past participle stem of videre "to see," from PIE root *weid- "to see." The meaning "sense of sight" is first recorded late 15c. Meaning "statesman-like foresight, political sagacity" is attested from 1926.

Related entries & more 
nightspot (n.)

also night spot, "nightclub," 1936, from night (n.) + spot (n.) "place."

Related entries & more 
Advertisement
midnight (n.)

"the middle of the night, 12 o'clock at night," Old English mid-niht, or middre niht (with dative of adjective). See mid (adj.) + night. Compare similar formation in Old High German mittinaht, German Mitternacht. Midnight oil symbolizing "late night work" is attested from 1630s.

Related entries & more 
foresight (n.)

also fore-sight, early 14c., "insight obtained beforehand;" also "prudence," from fore- + sight (n.). Perhaps modeled on Latin providentia. Compare German Vorsicht "attention, caution, cautiousness."

Related entries & more 
Kristallnacht (n.)

in reference to the pogrom of Nov. 9-10, 1938, in Germany and Austria; from German, literally "crystal night;" often translated as "Night of Broken Glass." See crystal (n.) + night (n.).

Related entries & more 
noctidial (adj.)

"comprising a night and a day," 1690s, from Latin noct-, stem of nox "night" (see noct-) + dies "day" (see diurnal).

Related entries & more 
insight (n.)

c. 1200, innsihht, "sight with the 'eyes' of the mind, mental vision, understanding from within," from in (prep.) + sight (n.). But the meaning often seems to be felt as "sight into" (something else), and so the sense shifted to "penetrating understanding into character or hidden nature" (1580s). Similar formation in Dutch inzigt, German einsicht, Danish indsigt.

Related entries & more 

Page 4