NoDictionaries   Text notes for  
... liberos, iniungi dilectus, tamquam mori tantum pro patria nescientibus....

Pres. passive inf. of "morior," which here means "know how to"; "nescientibus" is dat. in agreement with " sibi" implied from thr previous clause: levies were imposed upon them (to fight for Rome) on the belief that ("tamquam")....