δημεραστής

οῦ, ή, όν, Subst., ὁ
A. friend of the people, Pl. Alc. 1.132a, D.C. 47.38:— hence Subst. δημεραστ‐ία, ἡ, Poll. 3.65, and Adj. δημεραστ‐ικός, ή, όν, friendly to the people, Procl. in Alc. p.146 C.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project