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stratum (n.)

"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").

also from 1590s
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Trends of stratum

updated on September 28, 2017

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