Declension table of ?talva

Neuter	Singular	Dual	Plural
Nominative	talvam	talve	talvāni
Vocative	talva	talve	talvāni
Accusative	talvam	talve	talvāni
Instrumental	talvena	talvābhyām	talvaiḥ
Dative	talvāya	talvābhyām	talvebhyaḥ
Ablative	talvāt	talvābhyām	talvebhyaḥ
Genitive	talvasya	talvayoḥ	talvānām
Locative	talve	talvayoḥ	talveṣu

Compound talva -

Adverb -talvam -talvāt