sūcĭnum (succ-), i, n. [sucus],
amber , usu. called electrum, Plin. 37, 2, 11, § 30; Mart. 3, 65, 5; 5, 37, 11; Juv. 6, 573 al.
sūcinum (not succ-), ī, n sucus, amber : legere, Ta., Iu. ...
An Elementary Latin Dictionary