Word Story 12:

The Living Daylights

Meaning: A person's eyes; more recently, the life force or consciousness.
Origin:
The release of the 1987 film The Living Daylights, the fifteenth in the James Bond series, reawakened usage of this old phrase. When we refer to someone having the living daylights beaten, scared, or knocked out of them, we just mean that they have been badly beaten or scared, or knocked unconscious. The imagery is of someone being so discomforted as to lose the power of sight. Like similar phrases, for example 'beat the stuffing out of', the phrase is often used with an air of exaggeration and not always meant to be taken literally.
The original 18th century meaning of 'daylights' was quite specific and literal; it meant 'the eyes'. That meaning is now long forgotten and few people are aware of it. The word was occasionally used to denote other items to do with seeing - spectacles, windows etc. but usage of 'daylights' was largely limited to the eyes and to threats to close them by force.
The 'eyes' meaning of the word was going out of use even in the 19th century, hence the emergence then of 'knocking or beating the daylights out of someone'. The phrase is intended to indicate a severe beating, but perhaps not literally that severe. The lack of appreciation of the 'eyes' meaning led to the later 'beat the living daylight' variant. When referring to eyes, 'daylights' makes sense, whereas the singular 'daylight' doesn't, unless the intent is to punch only one eye that is.
The first use of 'beating the daylights out' is in Augustus Peirce's poem The Rebelliad, 1842:
The people used to turn about,
And knock the rulers' daylights out
The 20th century American version of the phrase is 'punch someone's lights out'. The precursor to this form of the phrase was a widely syndicated newspaper report of the 1956 fight between Sugar Ray Robinson and Carl (Bobo) Olson:
"Robinson's knockout punch turned out the lights for Bobo in