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late Old English plaster "medicinal application," from Vulgar Latin plastrum, shortened from Latin emplastrum "a plaster" (in the medical as well as the building sense), from Greek emplastron "salve, plaster" (used by Galen instead of more usual emplaston), noun use of neuter of emplastos "daubed on," from en- "on" + plastos "molded," from plassein "to mold" (see plasma). The building construction material is first recorded in English c.1300, via Old French plastre, from the same source, and in early use the English word often had the French spelling.
"to coat with plaster," early 14c., from plaster (n.) and partly Old French plastrier "to cover with plaster" (Modern French plâtrer), from plastre (see plaster (n.). Related: Plastered; plastering. Figurative use from c.1600. Meaning "to bomb (a target) heavily" is first recorded 1915. Sports sense of "to defeat decisively" is from 1919.
plaster plas·ter (plās'tər)
Plaster of Paris.
A pastelike mixture applied to a part of the body for healing or cosmetic purposes.
To cover or apply generously: They plastered the city with leaflets (1585+)
[money sense fr shinplaster, an early 19th-century term for ''currency of little value or very small denomination'']
a pasty composition (as of lime or gypsum, water, and sand) that hardens on drying and is used for coating walls, ceilings, and partitions