Frater

Latin term for "brother." The term may appear spelled several different ways in historical documents according to its grammatical usage in the sentence, as shown in the following table:

Case	Singular	Plural
Nominative	frater	fratres
Vocative	frater	fratres
Accusative	fratrem	fratres
Genitive	fratris	fratrum
Dative	fratri	fratribus
Ablative	fratre	fratribus