Lewis Short
mŏnarchĭa (noun F) : μοναρχία
* Absolute rule, monarchy (post-class. for unius dominatio, imperium singulare, regnum, regalis potestas), Capitol. Max. and Balb. 14; Tert. adv. Prax. 14; Lact. 1, 5, 23.
Charlton T. Lewis, Charles Short, A Latin Dictionary