[ mas-tif, mah-stif ]
/ ˈmæs tɪf, ˈmɑ stɪf /


one of a breed of large, powerful, short-haired dogs having an apricot, fawn, or brindled coat.

Origin of mastiff

1300–50; Middle English mastif, perhaps extracted from Anglo-French masti(n)s (taken as *mastifs), plural of Old French mastin < Vulgar Latin (canis) *ma(n)suētīnus, derivative of Latin mansuētus tame, mild (see mansuetude) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mastiff

British Dictionary definitions for mastiff


/ (ˈmæstɪf) /


an old breed of large powerful short-haired dog, usually fawn or brindle with a dark mask

Word Origin for mastiff

C14: from Old French, ultimately from Latin mansuētus tame; see mansuetude
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012