Etymology
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ipseity (n.)
"personal identity, individuality, selfhood," 1650s, from Latin ipse "self" + -ity.
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ipsilateral (adj.)
"on the same side of the body," 1907, from Latin ipse "self" + lateral (adj.). Related: Ipsilaterally.
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solipsism (n.)
1871, coined from Latin solus "alone" (see sole (adj.)) + ipse "self." The view or theory that self is the only object of real knowledge or the only thing that is real. "The identification of one's self with the Absolute is not generally intended, but the denial of there being really anybody else" [Century Dictionary].
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