Declension table of ?gāyatrin

Masculine	Singular	Dual	Plural
Nominative	gāyatrī	gāyatriṇau	gāyatriṇaḥ
Vocative	gāyatrin	gāyatriṇau	gāyatriṇaḥ
Accusative	gāyatriṇam	gāyatriṇau	gāyatriṇaḥ
Instrumental	gāyatriṇā	gāyatribhyām	gāyatribhiḥ
Dative	gāyatriṇe	gāyatribhyām	gāyatribhyaḥ
Ablative	gāyatriṇaḥ	gāyatribhyām	gāyatribhyaḥ
Genitive	gāyatriṇaḥ	gāyatriṇoḥ	gāyatriṇām
Locative	gāyatriṇi	gāyatriṇoḥ	gāyatriṣu

Compound gāyatri -

Adverb -gāyatri