Lewis & Short

phĭlostorgus, a, um, adj., = φιλόστοργος,

  1. I. loving tenderly, affectionate, esp. of the love of parents and children (postAug.): philostorgus, cujus rei nomen apud Romanos nullum est, Front. Ep. ad Amic. 1, 6; cf. id. ib. ad Verum, 7.
  2. II. Written PHILOSTERGVS, a Roman surname, Inscr. Grut. 240, 1.