quindĕcim — Lewis & Short
quindĕcim, num. adj.quinque-decem,
I fifteen:
QVINDECIM PONDO, Lex XII. Tab.: quindecim miles minas dederat,Plaut. Ps. 1, 1, 51; 1, 3, 112; Hor. C. S. 70:
dies circiter quindecim,Caes. B. G. 1, 15; App. Mag. p. 304, 33.