Definition of "infolding"
A folding inward.
Quotations
[…] Rosilia seated herself upon a small stool in the centre of the floor, when the child in playfulness slipped from her head the combs which confined her hair, and instantly those silken tresses, falling to the ground, spread luxuriantly like a sable veil around her. Amused by the sight, the sportive child stood laughing, and again approaching twisted her fingers through the rich infoldings.
1838, [Letitia Elizabeth] Landon (indicated as editor), chapter XVI, in Duty and Inclination: […], volume III, London: Henry Colburn, […], page 205