From ginosko; well-known -- acquaintance, (which may be) known, notable.
see GREEK ginosko
γνωστὰ (gnōsta) − 1 Occurrence
γνωστοὶ (gnōstoi) − 1 Occurrence
γνωστοῖς (gnōstois) − 1 Occurrence
γνωστὸν (gnōston) − 10 Occurrences
γνωστὸς (gnōstos) − 2 Occurrences