Etymology
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enclose (v.)

enclosen, "to surround (a plot of ground, a town, a building, etc.) with walls, fences, or other barriers," early 14c., from en- (1) + close (v.), and partially from Old French enclos, past participle of enclore "surround; confine; contain." Specific sense of "to fence in waste or common ground" for the purpose of cultivation or to give it to private owners is from c. 1500. Meaning "place a document with a letter for transmission" is from 1707. Related: Enclosed; enclosing.

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enclosure (n.)
mid-15c., "action of enclosing," from enclose + -ure. Meaning "that which is enclosed" is from 1550s.
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mound (v.)

1510s, "to enclose with a fence;" c. 1600 as "to enclose or fortify with an embankment;" see mound (n.). From 1859 as "to heap up." Related: Mounded; mounding.

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rail (v.2)

"fence in or enclose with rails," late 14c., railen, from rail (n.1). Related: Railed; railing.

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curtain (v.)

c. 1300, "to enclose with or as if with a curtain," from Old French cortiner, from cortine (see curtain (n.)). Related: Curtained.

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encase (v.)

"to enclose in a case," 1630s, from en- (1) "make, put in" + case (n.2). Related: Encased; encasing.

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encircle (v.)

"form a circle round, enclose or surround circularly," c. 1400, from en- (1) "make, put in" + circle (n.). Related: Encircled; encircling.

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include (v.)
early 15c., "to shut (someone or something) in materially, enclose, imprison, confine," also "to have (something) as a constituent part," from Latin includere "to shut in, enclose, imprison, insert," from in- "in" (from PIE root *en "in") + claudere "to shut" (see close (v.)). The alleged Sam Goldwyn-ism "Include me out" is attested from 1937. Related: Included; including.
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encapsulate (v.)
1842 (implied in encapsulated), "enclose in a capsule," from en- (1) "make, put in" + capsule + -ate (2). Figurative use by 1939. Related: Encapsulating.
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