παράσειρος · paraseiros — LSJ
tied, fastened alongside, harnessed alongside, associate
tied or fastened alongside, π. ἵππος a horse harnessed alongside of the regular pair, = σειραφόρος, Poll. 1.141, Them. Or. 4.50a : metaph., associate, E. Or. 1017 (lyr.).
II at the side, parts on, each side of the tongue, lowest of the true ribs
generally, at the side, X. Cyn. 5.23, Ael. NA 15.10 ; παράσειρα, τά, parts on each side of the tongue, Ruf. Onom. 57, Poll. 2.107, cf. περισείρια ; δύο [πλευραὶ] π. two lowest of the true ribs, ib. 182.