Will the pronominals be "dese" and "lay" without space? I don't think , because none fits as dictionary entry , and less together . See give , verbs / dé , tend , understand , se , desentender .
It means neglecting, carefree, ignoring. Do not pay attention or care.
He got away with it because a solution had already been found.
DESENTENDERSE to be carefree (of a matter), to go crazy, to be a doubt, to give no importance (to a matter)