Declension table of ?traimāsya

Neuter	Singular	Dual	Plural
Nominative	traimāsyam	traimāsye	traimāsyāni
Vocative	traimāsya	traimāsye	traimāsyāni
Accusative	traimāsyam	traimāsye	traimāsyāni
Instrumental	traimāsyena	traimāsyābhyām	traimāsyaiḥ
Dative	traimāsyāya	traimāsyābhyām	traimāsyebhyaḥ
Ablative	traimāsyāt	traimāsyābhyām	traimāsyebhyaḥ
Genitive	traimāsyasya	traimāsyayoḥ	traimāsyānām
Locative	traimāsye	traimāsyayoḥ	traimāsyeṣu

Compound traimāsya -

Adverb -traimāsyam -traimāsyāt