Illustrated Companion to the Latin Dictionary/Colobium

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

COLOB'IUM (κολόβιον). A tunic with short sleeves (from the Greek κολοβός, docked or curtailed) which just covered the upper and fleshy part of the arm (Serv. ad Virg. Aen. ix. 616.), as shown by the annexed example (Colobium/1.1), from the Column of Trajan. This was the original and usual form of the tunic worn by the Romans of the republican age, at home, or in active exercise, as here represented; but abroad, or when in costume, as we might say, the toga was thrown over it.

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  Colobium/1.1