whoreson[noun]Synonyms: bastard, by-blow, catch colt, chance child, come-by-chance, filius nullius, illegitimate, love child, natural child, woods colt
 [TahlilGaran] English Synonym Dictionary ▲
 whoreson noun & adjective. 
['hɔ:s(ǝ)n] arch. ME.[from WHORE noun + SON noun1, after Anglo-Norman fiz a putain.]A. noun. A bastard son; 
gen. a despicable man, a scoundrel. 
ME.b.  attrib. or as
 adjective. Vile, abominable, detestable. 
LME.  [TahlilGaran] English Dictionary ▲