cippi

These obstacles were long pits, trenches, or fossae, 5 feet (1.5 m) deep, perhaps with a W-like profile, inside which were fixed obstacles of sharpened tree branches.
Found on http://www.encyclo.co.uk/visitor-contributions.php

cippi

obstacle trenches These were long pits or fossae, 5 feet deep, perhaps with a W-like profile, inside which were fixed obstacles of sharpened tree branches; they are described by Caesar (De Bello Gallico, VII.73-80).
Found on http://www.roman-britain.org/military/military_glossary.htm

Cippi

• (pl. ) of Cippus
Found on http://thinkexist.com/dictionary/meaning/cippi/
No exact match found