Lewis Short
con-gĕmĭno, āvi, ātum, 1
* V. a., to double, redouble, repeat, reduplicate (poet.): nunc si pateram patera peperit, omnes congeminavimus,i. e. have produced our like, doubled ourselves,Plaut. Am. 2, 2, 154: L (litteram),Lucil. S. 9, 9: crebros ictus ensibus,Verg. A. 12, 714; in the same sense, securim,id. ib. 11, 698: suspiria rauco fremitu,Sil. 16, 267: paeana,Val. Fl. 6, 512: vocem,id. 2, 201; App. Dogm. Plat. p. 6, 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary