Artificial intelligent assistant

hypogeum

hypogeum
  (hɪpəʊˈdʒiːəm, haɪpəʊ-)
  Also -gæum. Pl. hypogea (-ˈdʒiːə).
  [L. hypogēum, hypogæum, ad. Gr. ὑπόγειον, ὑπόγαιον neut. sing. of ὑπόγειος underground; see hypogean, and cf. hypogee.]
  An underground chamber or vault.

1706 Phillips (ed. Kersey), Hypogæum, a Cellar or Vault arched over head, a Place under Ground. 1850 J. Leitch tr. C. O. Müller's Anc. Art (ed. 2) §177 The painted hypogæa of Etruria. Ibid. §319 The Etruscan hypogea. 1865 J. Fergusson Hist. Archit. i. i. iii. I. 99 The tombs of Beni Hassan..are situated on the eastern side of the Nile, and are almost the only hypogea that are so placed in Egypt.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC 7a89e832abcb25efc71f3848c8f30b36