Lewis Short
(verb) : impraegno (inpr-), ātum, 1, in-praegno
* To impregnate, make pregnant (late Lat.; perh. only in part. perf.): illa ab eo impregnata vidit in somnis per fauces introisse solem, etc., Myth. Vat. ap. Mai. Auct. Class. t. 3, p. 117.
Charlton T. Lewis, Charles Short, A Latin Dictionary