sumpter sumpsimus • sumption · · · Info · Definitions · Synonyms · Characters · · sumpter · · Text Latin · · Script 7 · · Length Definitions · · · (noun) an animal (such as a mule or burro or horse) used to carry loads. Synonyms: pack animal. · · Noun Definition 1 Synonyms · · · pack animal · · Synonym 1 Characters · · e latin small letter e U+0065 m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075