Reconnaissance
来自Big Physics
early 19th century: from French, from reconnaître ‘recognize’ (see reconnoitre).
wiktionary
Borrowed from French reconnaissance(“recognition”).
etymonline
reconnaissance (n.)
"preliminary examination or survey," specifically "an examination of a territory or enemy position with a view to directing military operations," 1810, a word from the Napoleonic Wars, from French reconnaissance "act of surveying," literally "recognition," from Old French reconoissance "recognition, acknowledgement" (see recognizance).
