Nouns ending in -i

These nouns are either masculine or neuter. They can be declined using the endings of either Pattern A or Pattern B. (Exceptions are in bold below.) In endings that start with a short vowel (a), the short vowel is replaced by i. In endings that start with a long vowel (e or ā), the long vowel is replaced by ī.

Direct cases

	Masc. Singular	Neut. Singular	Masc. Plural	Neut. Plural
Nom / Voc	i	iṃ	ī / ayo	īni
Acc	iṃ	iṃ	ī / ayo	īni

Oblique cases

	Singular (Masc./Neut.)	Plural (Masc./Neut.)
Dat / Gen	issa / ino	īnaṃ
Ins / Abl	ismā / imhā / inā	īhi
Loc	ismiṃ / imhi / ine	īsu

Nouns ending in -u

These nouns are either masculine or neuter. They can be declined using the endings of either Pattern A or Pattern B. (Exceptions are in bold below.) In endings that start with a short vowel (a), the short vowel is replaced by u. In endings that start with a long vowel (e or ā), the long vowel is replaced by ū.

Direct cases

	Masc. Singular	Neut. Singular	Masc. Plural	Neut. Plural
Nom / Voc	u	uṃ	ū / avo	ūni
Acc	uṃ	uṃ	ū / avo	ūni

Oblique cases

	Singular (Masc./Neut.)	Plural (Masc./Neut.)
Dat / Gen	ussa / uno	ūnaṃ
Ins / Abl	usmā / umhā / unā	ūhi
Loc	usmiṃ / umhi / une	ūsu