Etymology of the French word reconnaissance
the French word reconnaissance
derived from the Old French word reconoissance
derived from the Old French word reconoistre
derived from the French word reconnaître
derived from the Latin word recognoscere (recognize, recollect)
derived from the Latin word cognoscere (to know; become acquainted with, aware of; recognize)
using the Latin prefix co-
derived from the Latin word gnoscere (to recognize; examine, study, inspect; get to know; learn, find out)
derived from the Proto-Indo-European root *gnō-
using the Latin prefix re-