term:

Escrow

escrow n

[Anglo-French escroue deed delivered on condition, literally, scroll, strip of parchment, from Old French escroe]
1 : an instrument and esp. a deed or money or property held by a third party to be turned over to the grantee and become effective only upon the fulfillment of some condition
2 : a fund or deposit designed to serve as an escrow

in escrow
: held as an escrow
: in trust as an escrow [had $1000 in escrow to pay taxes] compare trust

vt : to cause to be held as an escrow
: place in escrow