μεσο-πόρος,
Epic dialect μεσσ-, ον, going or passing in the middle, [[ 2nd-3rd c.AD: Oppianus Anazarbensis Epicus “Halieutica - Poetae Bucolici et Didactici” 5.46 ] Refs 2nd c.AD+]; μ. δι᾽ αἰθέρος through mid-air, [[ 5th c.BC: Euripides Tragicus “Ion” 1152. ] Refs 5th c.BC+]