nHypotheca(Rom. Law) An obligation by which property of a debtor was made over to his creditor in security of his debt.☞ It differed from pledge in regard to possession of the property subject to the obligation; pledge requiring, simple hypotheca not requiring, possession of it by the creditor. The modern mortgage corresponds very closely with it.
Century Dictionary and Cyclopedia
nhypothecaThe inner half of the frustule of a diatom.
Webster's Revised Unabridged Dictionary
L., fr. Gr. a thing subject to some obligation, fr. to put under, put down, pledge. See Hypothesis