1) Exclusively Anglo word 2) Exclusively Saxon word 3) Familiar, old style 4) Good manners 5) Good manners, facetiously 6) Having polish 7) Kempt and mannerly 8) Rarely used antonym of crude 9) Refined 10) Suaveness 11) Used facetiously 12) Well-mannered, facetiously 13) Well-mannered, humorously 14) Word with Anglo-Saxon origins 1) Refined 
• (imp. & p. p.) Could; was able; knew or known; understood.
Couth imperfect & past participle of Can . [ See Can , and confer Uncouth .] Could; was able; knew or known; understood. [ Obsolete] « Above all other one Daniel He loveth, for he couth well Divine, that none other couth ; To him were all things couth ...
[adj] - used facetiously
adjective (used facetiously) refined