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pous [Greek, πούς]

In classical times, a unit in the Greek system of units of length. The word also means “foot.” Plural, podos, ποδος.

Size of the *pous*
Attic	29.57 centimeters
Olympic	32.00 cm
Pergamene	33.00 cm
Aeginetan	33.30 cm

Pakkanen's¹ statistical analysis of building blocks in the Erechtheion at Athens yielded a pous of 324–325 mm.

1. J. Pakkanen.
Deriving Ancient Foot Units from Building Dimensions: a Statistical Approach Employing Cosine Quantogram Analysis.
in
G. Burenhult and J. Arvidsson (eds.).
Archaeological Informatics: Pushing the Envelope. CAA 2001. Computer Applications and Quantitative Methods in Archaeology.
Proceedings of the 29th Conference, Gotland, April 2001,
BAR International Series 1016, Oxford 2002, pages 501–506.