μεσῑτ-εία · mesit-eia — LSJ
mediation, J. AJ 20.3.2, Jul. Mis. 354d; arbitration, BGU 1676.5 (ii A. D.), 98.23 (iii A. D.), etc.; μ. κρίσεων Vett.Val.2.27 (pl.).
pledging, mortgaging, BGU 445.9 (iii A. D.), etc.
negotiation, Babr. 93.8.
lying between, Nicom. Ar. 1.7.