Declension table of ?ruka

Masculine	Singular	Dual	Plural
Nominative	rukaḥ	rukau	rukāḥ
Vocative	ruka	rukau	rukāḥ
Accusative	rukam	rukau	rukān
Instrumental	rukeṇa	rukābhyām	rukaiḥ rukebhiḥ
Dative	rukāya	rukābhyām	rukebhyaḥ
Ablative	rukāt	rukābhyām	rukebhyaḥ
Genitive	rukasya	rukayoḥ	rukāṇām
Locative	ruke	rukayoḥ	rukeṣu

Compound ruka -

Adverb -rukam -rukāt