under-ground

under-ground (adv.): v. UNDER, A.

under-ground (adj.):

1. subterrānei: u. caverns, subterranei specus, Cic. Att. 15, 26.

2. subterrēnus: Apul. Met. 9, 22, p. 227, Elm.

3. subterreus: Arnob. 7.