subtle + -ty

source: subtlety in anime : anime

noun (plural subtleties)

the quality or state of being subtle:

巧妙(さ), 上手さ; 鋭敏(さ), 鋭い感受性［洞察力］

e.g. the textural subtlety of Degas.

a subtle distinction, feature, or argument:

〖通例-ties〗(隠れた重要な)細部, 微細, 機微.

e.g. the subtleties of English grammar.

Middle English: from Old French soutilte, from Latin subtilitas, from subtilis ‘fine, delicate’ (see subtle).