Definition from Wiktionary, the free dictionary
- someone who is in a specified condition e.g. a drunkard
Derived terms 
From Middle French, from Old French -ard (suffix), -art, from Old Frankish *-hard (“hardy, bold”), from Proto-Germanic *harduz (“hard”), from Proto-Indo-European *kert-, *kret- (“strong”). More at English hard.
- Used primarily to form pejoratives, diminutives, and nouns representing or belonging to a particular class or sort.