efficaciousnessn.
The quality of being efficacious; effectiveness.
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the world > action or operation > advantage > efficacy > [noun]
mainOE
mightOE
strengthOE
efficace?c1225
bootingc1300
effectc1390
powera1393
boota1400
efficacity1430
operationc1450
valure1483
feck1495
efficacy1527
effectualness1545
effectuousnessa1576
validity1593
effectiveness1607
workingness1611
efficaciousnessa1628
operativeness1627
efficiency1633
effectualitya1641
energy1668
availablenessa1676
availment1699
potentialness1727
affectingnessa1774
effectivity1838
efficience1865
well working1879
a1628 J. Preston Serm. before His Majestie (1630) 44 As that which hath sinewes and efficatiousnesse in it [differs] from that which is..powerlesse.
1650 Truth's Confl. with Error ii. 42 The efficaciousness of the death of Christ.
1669 J. Bunyan Holy Citie 265 I come to speak to this Tree touching..the efficaciousness of its leaves.
1760 F. Blake in Philos. Trans. 1759 (Royal Soc.) 51 2 Which multiplied by the lever a gives ma—nb for the efficaciousness of that force.
1859 F. C. L. Wraxall tr. J. E. Robert-Houdin Mem. II. ii. 16 The Vermifuge Balsam, whose sovereign efficaciousness is indisputable.
This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2019).
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