Declension table of ?laṅkaka

Masculine	Singular	Dual	Plural
Nominative	laṅkakaḥ	laṅkakau	laṅkakāḥ
Vocative	laṅkaka	laṅkakau	laṅkakāḥ
Accusative	laṅkakam	laṅkakau	laṅkakān
Instrumental	laṅkakena	laṅkakābhyām	laṅkakaiḥ laṅkakebhiḥ
Dative	laṅkakāya	laṅkakābhyām	laṅkakebhyaḥ
Ablative	laṅkakāt	laṅkakābhyām	laṅkakebhyaḥ
Genitive	laṅkakasya	laṅkakayoḥ	laṅkakānām
Locative	laṅkake	laṅkakayoḥ	laṅkakeṣu

Compound laṅkaka -

Adverb -laṅkakam -laṅkakāt