intertrigo
From LSJ
Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
Latin > English (Lewis & Short)
inter-trīgo: ĭnis, f. tero,
I a chafing, fretting, or galling of the skin in riding, walking, etc., Varr. L. L. 5, § 176 Müll.: intertrigines, Plin. 20, 14, 53, § 151.
Latin > French (Gaffiot 2016)
intertrīgō,¹⁶ ĭnis, f. (inter, tero), écorchure, excoriation : Varro L. 5, 176 ; Cato Agr. 159 ; Plin. 20, 151.