Etymology
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clog (v.)

late 14c., "hinder, impede the movement of," originally by fastening a block of wood to something, from clog (n.). Meaning "choke up with extraneous matter" is 1670s; intransitive sense "become choked up with extraneous matter" is from 1755. Related: Clogged; clogging.

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cyanine (n.)

"blue coloring matter of certain flowers," 1855; see cyan- + -ine (2).

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monism (n.)

a word used in philosophy and metaphysics of systems of thought which deduce all phenomena from a single principle (1832); also "the doctrine that only one being exists" (1862), from German Monism (by 1818) or directly from Modern Latin monismus, from Greek monos "alone" (from PIE root *men- (4) "small, isolated"); also see -ism. First used in German by German philosopher Baron Christian von Wolff (1679-1754), who applied it to those who deny the substantiality either of mind or matter. Fowler defines it as "any view of that makes the universe consist of mind with matter as a form of mind, or of matter with mind as a form of matter, or of a substance that in every part of it is neither mind nor matter but both," and writes that it is a contrast to dualism.

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immaterial (adj.)
c. 1400, "spiritual, incorporeal, not consisting of matter," from Medieval Latin immaterialis "not consisting of matter, spiritual," from assimilated form of in- "not, opposite of" (see in- (1)) + Late Latin materialis "of or belonging to matter" (see material (adj.)). Sense of "unimportant, of no consequence" is first recorded 1690s from material (adj.) in its meaning "important" (16c.). Related: Immaterially (late 14c.); immateriality.
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materia medica (n.)

"substances used in medicine," 1690s, Latin, literally "medical matter."

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material (n.)

late 14c., "component substance, matter from which a thing is made," from material (adj.).

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saprophagous (adj.)

"feeding on putrid matter," 1819, Modern Latin; see sapro- + -phagous.

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sun-dried (adj.)
1630s in reference to vegetable matter, from sun (n.) + past-participle adjective from dry (v.).
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in re (prep.)

"in the matter of, in the (legal) case of," c. 1600, probably from Duns Scotus; Latin, from re, ablative of res "property, goods; matter, thing, affair," from Proto-Italic *re-, from PIE *reh-i- "wealth, goods" (source also of Sanskrit rayi- "property, goods," Avestan raii-i- "wealth").

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koan (n.)
Zen paradox meant to stimulate the mind, 1918, from Japanese ko "public" + an "matter for thought."
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