ingeniculo

in-gĕnĭcŭlo, āvi, ātum, 1, v. a. [in-geniculum],

to cause one to bend the knee; hence, ingeniculare se, to bend the knee , to sink down on the knee , to kneel , Hyg. Astr. 2, 6, fin. ; also, without se, Lampr. Elag. 5, 4.— Hence, ingĕnĭcŭlātus , a, um, P. a., kneeling : Hercules, a constellation , also called ingeniculus, Vitr. 9, 6.