LAT

Lewis Short

(verb) : per-tĕnĕo, ŭi, 2
* To hold constantly, keep hold of, hold fast (late Lat.): utinam (me) pertinuisset,Hier. Ep. 66, n. 13.
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory