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late 14c., "melt, dissolve, reduce to liquid;" intransitive sense from c.1400; from Old French resolver or directly from Latin resolvere "to loosen, loose, unyoke, undo; explain; relax; set free; make void, dispel," from re-, perhaps intensive, or "back" (see re-), + solvere "loosen" (see solve). Early 15c. as "separate into components," hence the use in optics (1785). Meaning "determine, decide upon" is from 1520s, hence "pass a resolution" (1580s). For sense evolution, cf. resolute (adj.). Related: Resolved; resolving.
"determination, firmness or fixedness of purpose; a determination," 1590s, from resolve (v.).
resolve re·solve (rĭ-zŏlv')
v. re·solved, re·solv·ing, re·solves
To cause resolution of an abnormal condition.
To separate an optically inactive compound or mixture into its optically active constituents.
To render parts of an image visible and distinct.