The Collaborative International Dictionary
Rehypothecate
Rehypothecate \Re`hy*poth"e*cate\ (r?`h?*p?th"?*k?t), v. t. (Law) To hypothecate again. -- Re`hy*poth`e*ca"tion, n.
Wiktionary
rehypothecate
n. (context finance English) To pledge hypothecated client-owned securities in a margin account to secure a bank loan; usually used for mortgages.