Lewis Short
ŏbĕliscus (noun M) = ὀβελίσκος: (a small spit; hence)
* An obelisk: trabes ex Syenite marmore fecere reges, obeliscos vocantes Solis numini sacratos,Plin. 36, 8, 14, § 64 sq.; cf. Amm. 17, 4, 17; Isid. Orig. 18, 31; Tac. A. 3, 60.
* A rose-bud (postclass.), Aus. Idyll. 14, 27.
* A mark in books placed against suspected passages, an obelisk (†), Aug. Ep. 10, 2 (cf. obelus).
Charlton T. Lewis, Charles Short, A Latin Dictionary