Declension table of ?catuṣkin

Neuter	Singular	Dual	Plural
Nominative	catuṣki	catuṣkiṇī	catuṣkīṇi
Vocative	catuṣkin catuṣki	catuṣkiṇī	catuṣkīṇi
Accusative	catuṣki	catuṣkiṇī	catuṣkīṇi
Instrumental	catuṣkiṇā	catuṣkibhyām	catuṣkibhiḥ
Dative	catuṣkiṇe	catuṣkibhyām	catuṣkibhyaḥ
Ablative	catuṣkiṇaḥ	catuṣkibhyām	catuṣkibhyaḥ
Genitive	catuṣkiṇaḥ	catuṣkiṇoḥ	catuṣkiṇām
Locative	catuṣkiṇi	catuṣkiṇoḥ	catuṣkiṣu

Compound catuṣki -

Adverb -catuṣki