Definition of "lubricity"

Though her lubricity made it redundant, Anthea passed him the oil to caress her thighs.

1983, Robert Drewe, The Bodysurfers, Penguin, published 2009, page 42

In one epoch lubricity, in another fanaticism, in a third dulness and a dead-alive copying of the past, are the faults which criticism finds to attack.

1906, Hilaire Belloc, introduction to Essays in Literature and History by James Anthony Froude