origo: ortus (of the place from which a thing comes): primordia, plur., (primitive state or condition): principium (beginning). Figuratively, fons: stirps; caput; radices, plur.; incunabula, plur. The second and third books treat of the origin of the Italian states, secundus et tertius liber continet unde quaeque civitas orta sit Italica (Nep., Cat., 3, 3): to have its origin in anything, originem ab aliquo habere (Plin.), trahere (Liv.), ducere (Hor.); emanare ex aliquo fonte (Cic.); ortum, natum esse, proficisci ab aliqua re; gigni ex aliqua re.