He denies them all. I must take care of my own, he snaps in response to bitter accusations of selfishness. They mutter rebelliously, but leave him alone.
What Elendur does not say is that his father and beautiful wife were killed by slender silver arrows on the pearly shores of Alqualondë, so he looks after his two children with special care; they are all he has left.
Coimas is Quenya for lembas.