[edit]Verb
founder (third-person singular simple present founders, present participle foundering, simple past and past participle foundered)
(intransitive) Of a ship, to fill with water and sink.  [quotations*▼]
(intransitive) To fall; to stumble and go lame, as a horse.
(intransitive) To fail; to miscarry.

SE tends to use older meanings for words. They really do their research.