Lewis Short
(verb) : com-pugno, āre
* To fight or contend together (post-class.), Gell. 12, 5, 3; 14, 5, 4; 14, 5 fin.; Sulp. Sev. de Vita S. Mart. 14.
* To combat together: amaritudinem,Veg. Art. Vet. 1, 13, 6.
Charlton T. Lewis, Charles Short, A Latin Dictionary