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.