Lexical Definition

‎τετραρχέω‎ tetrarchéō (tet-rar-kheh'-o) be a tetrarch ^G:V
from ‎τετράρχης‎

(be) tetrarch.

• to be a tetrarch

Abbott-Smith

† τετρααρχέω (Rec. τετραρχ-; v. WH, App., 145), -ῶ (< τετραάρχης),
to be tetrarch: c. gen., Lk 3:1 (FlJ, BJ, iii, 10, 7).†

Abbott-Smith References

Liddell-Scott-Jones

τετραρχέω-έω,

to be tetrarch, τῆς Γαλιλαίας [NT+1st c.AD+]

_{LSJ Scripture Refs: Luke.3.1}