The Collaborative International Dictionary
Caducity
Caducity \Ca*du"ci*ty\, n. [LL. caducitas: cf. F. caducit['e]. See Caducous.] Tendency to fall; the feebleness of old age; senility. [R.]
[A] jumble of youth and caducity.
--Chesterfield.
Wiktionary
caducity
n. 1 dotage or senility 2 The state of being impermanent or transitory.
Usage examples of "caducity".
Sometimes she would wait a week, or even two, until, blind with rage at his own impotence and the caducity of his passion, he would repeat the old cry, "She isn't minel Tell me, or I'll throttle it out of you.