Nouns ending in –us

2nd declension:

nouns like           nerv- us                                                              musculus

gen.                      nerv - i
muscul – i

3rd declension:

nouns (N) like    corp –us                                                             pect- us

gen.                       corpor – is
pector – is

4th declension:

Nouns like          proces – us                                                        audit – us

gen.                      proces – us                                                        audit
– us


To recognize which declension the noun ending in –us belongs to, i tis necessary to know its
genitive form!!!