From chraomai; employed, i.e. (by implication) useful (in manner or morals) -- better, easy, good(-ness), gracious, kind.
see GREEK chraomai
χρηστὰ (chrēsta) − 1 Occurrence
χρηστοί (chrēstoi) − 1 Occurrence
χρηστὸν (chrēston) − 1 Occurrence
χρηστὸς (chrēstos) − 4 Occurrences