penetrare, intrare (to enter; PROP. and figuratively): invadere (to rush in; PROP. and figuratively: all three with a simple accusative, or with in and an accusative): influere: infundi (to flow in; of a great number): se insinuare (to penetrate imperceptibly): descendere (to descend, go down; e.g., ferrum haud alte in corpus descendit: ferrum in ilia descendit [poetical]: then, figuratively, of impressions on the mind, etc.; e.g., hoc verbum in pectus ejus alte descendit).