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Old French floter
Old English flotian (cognate)
Middle Dutch vloten (cognate)
English float (link)
Proto-Germanic *flutōną (derived)
Proto-Indo-European *plew- (derived)
Proto-Indo-European *plōw- (mention)
Old Norse flota (cognate)

English flotsam (mention)
English flotant (mention)
French flotter (inherited)
Middle French flotter (inherited)
Old French flotage (suffix)
Old French floteson (suffix)
Norman fliotter (derived)
Walloon floter (inherited)