măcrŏcōlum and măcrŏcol-lum, i, n., = μακρόκωλον,
large-sized paper, royal paper , Cic. Att. 16, 3, 1; 13, 25, 3; Plin. 13, 12, 24, § 80.
macrocōlum and macrocollum ī, n , μακρόκωλον, large-sized paper, royal paper. ...
An Elementary Latin Dictionary