Origin of mastiffMiddle English mastif from Old French mastin from Vulgar Latin an unverified form mansuetinus from Classical Latin mansuetus, tame; Middle English form influenced, influence by Old French mestif, a mongrel from Classical Latin mixtus, mixed: see mix
Origin of mastiffMiddle English mastif alteration ( perhaps influenced by Old French mestif mongrel ) of Old French mastin from Vulgar Latin (canis) mānsuētīnus tame (dog) from Latin mānsuētus past participle of mānsuēscere to tame manus hand ; see man-2 in Indo-European roots. suēscere to accustom ; see s(w)e- in Indo-European roots.
- A large breed of dog. Often confused to be part of a type of large dogs. The Mastiff is a breed of it's own that is sometimes referred to as an "English Mastiff". Other breeds have Mastiff in their informal name such as "French Mastiff" for Dogue de Bordeaux or include Mastiff in their breed names; Tibetan Mastiff or Neapolitan Mastiff. All are different breeds as well as the often confused Bullmastiff.
An aberrant derivation from Old French mastin (modern French mÃ¢tin), from Vulgar Latin *mansuetÄ«nus (“tamed (animal)"), from Latin mansuetus (“tamed").