LAT

Lewis Short

(adverb) : per-dĭu
* For a great while, very long (rare but class.), Varr. R. R. 1, 58: perdiu nihil eram auditurus,Cic. Att. 3, 22, 4; id. de Or. 1, 2, 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory