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Origin and history of solid

solid(adj.)

late 14c., "not empty or hollow, hardened;" of figures or bodies, "having three dimensions," from Old French solide "firm, dense, compact," from Latin solidus "firm, whole, undivided, entire," figuratively "sound, trustworthy, genuine," from suffixed form of PIE root *sol- "whole."

The meaning "firm, hard, compact" is from 1530s. Of arguments, etc., "substantial" (opposed to frivolous or flimsy). The meaning "entirely of the same stuff" is from 1710. Of qualities, "well-established, considerable" c. 1600. Of food from c. 1700.

As a mere intensifier, "thoroughly, downright," by 1830. The slang sense of "wonderful, remarkable" is attested by 1920 among jazz musicians.

As an adverb, "solidly, completely," 1650s. Solid South in U.S. political history is attested from 1858 on the notion of unanimity in voting; solid in this sense (in reference to New York) is by 1855. Solid state as a term in physics is recorded from 1953; the meaning "employing printed circuits and solid transistors" (as opposed to wires and vacuum tubes) is from 1959.

solid(n.)

late 14c., "three-dimensional figure or body," from solid (adj.). In Middle English also "a number which is the product of three others." The meaning "a solid substance" (as opposed to a fluid) is from 1690s. Compare also solidus. Latin solidus (adj.) also was used as a noun meaning "an entire sum; a solid body."

Entries linking to solid

gold coin, late 14c., plural solidi, used of the English shilling as well as the Roman gold coin, from Late Latin solidus, name of an imperial Roman coin (worth about 25 denarii, introduced by Constantine the Great), in full nummus solidus, literally "solid coin," properly a coin of thick or solid metal, not of thin plate. See solid (adj.).

As the name of the oblique slash or dash separating shillings from pence in English prices (sometimes called a shilling mark and said to be a modified long -S- to denote "shillings") by 1891. It is also known as a virgule and is conventionally used as a substitute for the horizontal line in fractions or the division sign.

also semisolid, "half-solid, very viscous," 1803, from semi- + solid (adj.). As a noun, "a surface composed of facets, like a geometric solid, but not closed," by 1891.

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