Brookings Institute senior fellow Suzanne Maloney endorses negotiations in her article for The Daily Beast, “ An Absurd Outcome.”
Obviously, if he endorses Romney, that would be pretty devastating to Obama.
Vladimir Putin endorses plan to tweet about Barneys models from bathroom of his/her choice.
late 14c. endosse "alteration," from Old French endosser (12c.), literally "to put on back," from en- "put on" (see en- (1)) + dos "back," from Latin dossum, variant of dorsum.
Sense of "confirm, approve" (by signing on the back) is recorded in English first in 1847. Assimilated 16c. in form to Medieval Latin indorsare. Related: Endorsed; endorsing.
You can endorse, literally, a cheque or other papers, &, metaphorically, a claim or argument, but to talk of endorsing material things other than papers is a solecism. [Fowler]