Declension table of ?catuṣkin

Masculine	Singular	Dual	Plural
Nominative	catuṣkī	catuṣkiṇau	catuṣkiṇaḥ
Vocative	catuṣkin	catuṣkiṇau	catuṣkiṇaḥ
Accusative	catuṣkiṇam	catuṣkiṇau	catuṣkiṇaḥ
Instrumental	catuṣkiṇā	catuṣkibhyām	catuṣkibhiḥ
Dative	catuṣkiṇe	catuṣkibhyām	catuṣkibhyaḥ
Ablative	catuṣkiṇaḥ	catuṣkibhyām	catuṣkibhyaḥ
Genitive	catuṣkiṇaḥ	catuṣkiṇoḥ	catuṣkiṇām
Locative	catuṣkiṇi	catuṣkiṇoḥ	catuṣkiṣu

Compound catuṣki -

Adverb -catuṣki