He 'abandoned' the principles that he once fought hard to defend.
He 'abandoned himself to' despair. [=he was overcome by despair]
The child had been 'abandoned' (by his parents) as an infant.
(..) Imbecile! You should put his cigar out in your hand! Get out of here! They found Neveu's car abandoned at the train station. And two tickets to Brussels paid for with Langdon's credit card. A decoy, I'm sure. All the same, send an officer to the station. (..)2006 The Da Vinci Code