Declension table of ?svapañcaka

Neuter	Singular	Dual	Plural
Nominative	svapañcakam	svapañcake	svapañcakāni
Vocative	svapañcaka	svapañcake	svapañcakāni
Accusative	svapañcakam	svapañcake	svapañcakāni
Instrumental	svapañcakena	svapañcakābhyām	svapañcakaiḥ
Dative	svapañcakāya	svapañcakābhyām	svapañcakebhyaḥ
Ablative	svapañcakāt	svapañcakābhyām	svapañcakebhyaḥ
Genitive	svapañcakasya	svapañcakayoḥ	svapañcakānām
Locative	svapañcake	svapañcakayoḥ	svapañcakeṣu

Compound svapañcaka -

Adverb -svapañcakam -svapañcakāt