ξυλώδης
From LSJ
Πρόσεχε τῷ ὑποκειμένῳ ἢ τῇ ἐνεργείᾳ ἢ τῷ δόγματι ἢ τῷ σημαινομένῳ. → Look to the essence of a thing, whether it be a point of doctrine, of practice, or of interpretation.
English (LSJ)
ες,
A woody, hard as wood, Hp.Vict.2.65, Arist.Mete.387a32, Thphr.HP 6.2.2 (Sup.),7.9.3, Plu.2.953d ; of the nature of wood, Corn.ND 19. II of the colour of wood, brown, Thphr.HP7.3.2.