Etymology
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monolith (n.)

"monument consisting of a single large block of stone," 1829, from French monolithe (16c.), from Latin monolithus (adj.) "consisting of a single stone," from Greek monolithos "made of one stone," from monos "single, alone" (from PIE root *men- (4) "small, isolated") + lithos "stone" (see litho-). Transferred and figurative use in reference to a thing or person noted for indivisible unity is from 1934.

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monolithic (adj.)

1802, "formed of a single block of stone;" 1849, "of or pertaining to a monolith," from monolith + -ic. Figurative use from 1920. Related: Monolithal (1813).

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*men- (4)

Proto-Indo-European root meaning "small, isolated."

It forms all or part of: malmsey; manometer; monad; monarchy; monastery; monism; monist; monk; mono; mono-; monoceros; monochrome; monocle; monocular; monogamy; monogram; monolith; monologue; monomania; Monophysite; monopoly; monosyllable; monotony.

It is the hypothetical source of/evidence for its existence is provided by: Greek monos "single, alone," manos "rare, sparse;" Armenian manr "thin, slender, small."

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