Declension table of ?kelta

Neuter	Singular	Dual	Plural
Nominative	keltam	kelte	keltāni
Vocative	kelta	kelte	keltāni
Accusative	keltam	kelte	keltāni
Instrumental	keltena	keltābhyām	keltaiḥ
Dative	keltāya	keltābhyām	keltebhyaḥ
Ablative	keltāt	keltābhyām	keltebhyaḥ
Genitive	keltasya	keltayoḥ	keltānām
Locative	kelte	keltayoḥ	kelteṣu

Compound kelta -

Adverb -keltam -keltāt