Cistern
Pronunciation : Cis"tern
Part of Speech : n.
Etymology : [OE. cisterne, OF. cisterne, F. cisterne, fr. L. cisterna, fr. cista box, chest. See Cist, and cf. chest.]
Definition : 1. An artificial reservoir or tank for holding water, beer, or other liquids.
2. A natural reservoir; a hollow place containing water. "The wide cisterns of the lakes." Blackmore.
Source : Webster's Unabridged Dictionary, 1913