nonproductivity

Etymology tree Proto-Indo-European *né Proto-Germanic *ne Proto-Indo-European *ís? Proto-Indo-European *h₁óynos Proto-Germanic *ainaz Proto-Germanic *nainaz Proto-West Germanic *nain Old English nān Middle English non ▲ Old English nān Old English nān- Middle English non- English non- Proto-Indo-European *per-der.? Proto-Indo-European *per-der.? Proto-Indo-European *pér Proto-Indo-European *-o Proto-Indo-European *pró Proto-Indo-European *pro- Proto-Italic *pro- Late Latin prō- Proto-Indo-European *dewk- Proto-Indo-European *déwkti Proto-Italic *doukō Late Latin dūcō Late Latin prōdūcō Proto-Indo-European *-wósder. Late Latin -īvus Late Latin prōductīvusbor. English productive Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English productivity ▲ English non- ▲ English productive English nonproductive ▲ English -ity English nonproductivity From non- + productivity or nonproductive + -ity.

来源：wiktionary