Vulgar Latin
Some Gaulish words influenced Vulgar Latin and, through this, other Romance languages. For example, classical Latin was uniformly replaced in Vulgar Latin by 'nag, work horse', derived from Gaulish (cf. Welsh , Breton ), yielding , Occitan (), Catalan , Spanish , Portuguese , Italian , Romanian , and, by extension, English "cavalry" and "chivalry" (both via different forms of [Old] French).