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late 14c., "observe or explore as a scout, travel in search of information," from Old French escouter "to listen, heed" (Modern French écouter), from Latin auscultare "to listen to, give heed to" (see auscultate). Related: Scouted; scouting.
"to reject with scorn," 1710, earlier "to mock" (c.1600), of Scandinavian origin (cf. Old Norse skuta, skute "to taunt"), probably from a source related to shout (v.). Related: Scouted; scouting; scoutingly.
"person who scouts, one sent out to gain information," 1550s, from scout (v.1). Boy Scout is from 1908. Scout's honor attested from 1908.