(ˈ)prī|mipələ(r), |prīmə̇|pīlə(r) adjective
Etymology: Latin primipilaris, from primipilus chief centurion of the third division (from primus first + pilus division of the third division — from pilum javelin, pestle, javelin of the Roman infantry — after the phrase primi pili ( centurio ) centurion of the third division) + -aris -ar — more at pestle
: of, relating to, or constituting the chief centurion of the third division of a Roman legion