Appendix:Pali declension

Pali nouns inflect for three grammatical genders (masculine, feminine, and neuter) and two numbers (singular and plural). The nouns also, in principle, display eight cases: nominative or paccatta case, vocative, accusative or upayoga case, instrumental or karaṇa case, dative or sampadāna case, ablative, genitive or sāmin case, and locative or bhumma case; however, in many instances, two or more of these cases are identical in form; this is especially true of the genitive and dative cases.

a-stems
a-stems, whose uninflected stem ends in short a, are either masculine or neuter. The masculine and neuter forms differ only in the nominative, vocative, and accusative cases.

ā-stems
Nouns ending in ā are almost always feminine.

i-stems and u-stems
i-stems and u-stems are either masculine or neuter. The masculine and neuter forms differ only in the nominative and accusative cases. The vocative has the same form as the nominative.