About Mike Bishop

An archaeologist who walks, drives, cycles, flies, photographs, draws, writes about, and (once, in horizontal snow...) digs Hadrian's Wall, armed only with a trusty yet gleaming Creative Commons licence.

The Roman Army A to Z: retentura

retentura (f. pl. retenturae)

Literally ‘the rear tented area’, behind the principia. DMC 17. [Johnson 1983]