English ratiocination

← English ratiocinate (suffix)

← English ion (suffix)

← French ratiocination (borrowed)

← Proto-Indo-European *h₂er- (root)

← Proto-Indo-European *h₂er- (derived)

← Proto-Italic *rēōr (derived)

← Latin ratiōcinātiō (derived)

← Latin ratiōcinātus (mention)

← Latin -tiō (mention)

← Latin ratiōcinor (mention)

← Latin ratiō (mention)

← Latin reor (mention)

← Latin -cinor (mention)

← Latin vāticinor (mention)