prolificityn.

1718 R. Bradley New Improvements Planting (ed. 2) ii. 19 Excess of Vigour is a hindrance of Prolificity.

1777 T. Marryat Art of Healing 292 To give prolificity to the semen, by determining a sufficient quantity of the nervous influence to it, nothing equals the oil of cloves.

1808 S. T. Coleridge in Edinb. Rev. July 369 The known prolificity of the Blacks under very unfavourable circumstances.

1887 A. M. Brown Treat. Animal Alkaloids Introd. p. xiv The foreign cells comport themselves much in the mode that cancer cells..do, exhibiting a life, a power of prolificity so active as to rapidly invade the whole economy.

1900 G. M. Gould & W. L. Pyle Anomalies & Curiosities Med. iv. 144 Prolificity is a much discussed subject, for besides its medical and general interest it is of importance in social as well as in political economy.

1970 Morning Star 23 Feb. 1/4 Those who doubted whether the prince could have penned the comic gems that dropped with such prolificity from his stiff upper lip were put right by show committee president Tony Kirwan.

1995 Times 27 Apr. 34/5 At the end of the 20th century, prolificity does not stand a writer in good stead.