Lewis Short
(verb) : angusto, āvi, ātum, 1, angustus
* To make narrow, to straiten (first used after the Aug. per.): Cujus (Hellesponti) iter caesis angustans corporum acervis,Cat. 64, 359: (puteus) ore angustatur,Plin. 17, 8, 4, § 45: servorum turba, quae quamvis magnam domum angustet,Sen. Cons. ad Helv. 11: maris angustat fauces,Luc. 5, 232: angustare aëris meatus. id. 4, 327: animam in artus tumidos angustare,Stat. Th. 4, 827; 12, 665.—Trop., to circumscribe, restrain: gaudia sua,Sen. Cons. ad Polyb. 29: angustanda sunt patrimonia,id. Tranq. 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary