δρυΐνας
From LSJ
μὴ ἐν πολλοῖς ὀλίγα λέγε, ἀλλ΄ ἐν ὀλίγοις πολλά → don't say little in many words, but much in a few words (Stobaeus quoting Pythagoras)
English (LSJ)
ου, ὁ,
A serpent living in hollow oaks, Nic.Th.411, Dsc. Ther.11.
German (Pape)
[Seite 668] ὁ, eine in hohlen Eichen sich aufhaltende Schlangenart, Nic. Th. 471.