cognomen

这位将军因其英勇战绩获得了'铁血'这个称号。

The general earned the ___cognomen 'Iron Blood' for his heroic deeds.

在古罗马，'马格努斯'这个绰号常被授予有杰出军事成就的将军。

In ancient Rome, the ___cognomen 'Magnus' was often given to generals with outstanding military achievements.