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Origin and history of substratum

substratum(n.)

"that which is laid or spread under," originally in theology and metaphysics, 1630s, from Modern Latin substratum (plural substrata), noun use of neuter singular past participle of Latin substernere "to spread underneath," from sub "under, below, beneath" (see sub-) + sternere "to spread out, lay down, stretch out" (from nasalized form of PIE root *stere- "to spread").

Of material situations, "anything that underlays" (1670s); in agriculture, "subsoil." In linguistics by 1922 in reference to elements of a mother tongue carried into a different language by people who adopt one in place of the other. Compare stratum.

Entries linking to substratum

"horizontal layer," 1590s, from a Modern Latin special use of Latin stratum "thing spread out, coverlet, bedspread, horse-blanket; pavement," noun uses of neuter of stratus "prostrate, prone," past participle of sternere "to spread out, lay down, stretch out" (from nasalized form of PIE root *stere- "to spread").

1810, "a substratum, that which is laid or spread under" in any sense, from Modern Latin substratum, noun use of neuter singular past participle of Latin substernere "to spread underneath," from sub "under, below, beneath" (see sub-) + sternere "to spread out, lay down, stretch out" (from nasalized form of PIE root *stere- "to spread"). For linguistics use, see substratum.

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