LSJ
έως, ὁ, a name of Apollo, as guardian of the streets and highways, E. Ph. 631, Orac. ap. D. 21.52, IG 3.159, al.
pointed pillar, set up as his statue or altar at the street-door, Ar. V. 875, Pherecr. 87, Dieuchid. 2; Ἀγυιεὺς βωμός S. Fr. 370.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)