refinement
re-fine-ment
noun
The quality of being elegant, cultured, or sophisticated in manner or taste.
"Her manners showed great refinement."
noun
The process of improving something by making small, precise changes.
"The software needs further refinement."
Thesaurus
Synonyms: cultivation, finish, polish, culture, subtlety, shade, nicety, nuance, civilization, civilisation, elaboration, purification