πλαίσιον
πλαίσιον
πλαίσιον, ου, τό,
an oblong figure or body, Ar.; ἰσόπλευρον πλ. a square, Xen.; of an army, ἐν πλαισίῳ τετάχθαι to be drawn up in square, Lat. agmine quadrato, as opp. to marching order, Lat. agmine longo, Thuc., Xen.
Prob. from same Root as πλατύς.