dē-rĭgesco — Lewis & Short
dē-rĭgesco, gŭi, 3,
I v. inch. n. (occurring only in the perf.), to become stiff or rigid; to curdle (a poet. word):
formidine sanguis deriguit,Verg. A. 3, 260:
deriguere oculi,were fixed, id. ib. 7, 447; so,
oculi,Ov. M. 14, 754:
hirsutae comae,id. F. 3, 332:
manus,Luc. 3, 613:
cervix,Ov. M. 5, 233:
Niobe malis,id. ib. 6, 303 (al. diriguit).