mon ‧ grel /ˈmʌŋɡrəl $ ˈmɑːŋ-, ˈmʌŋ-/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Origin: Probably from mong 'mixture' (13-19 centuries) , from Old English gemong 'crowd' ]
a dog that is a mix of several different breeds
mon ‧ grel /ˈmʌŋɡrəl $ ˈmɑːŋ-, ˈmʌŋ-/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Origin: Probably from mong 'mixture' (13-19 centuries) , from Old English gemong 'crowd' ]
a dog that is a mix of several different breeds
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012