Declension table of ?manthaka

Neuter	Singular	Dual	Plural
Nominative	manthakam	manthake	manthakāni
Vocative	manthaka	manthake	manthakāni
Accusative	manthakam	manthake	manthakāni
Instrumental	manthakena	manthakābhyām	manthakaiḥ
Dative	manthakāya	manthakābhyām	manthakebhyaḥ
Ablative	manthakāt	manthakābhyām	manthakebhyaḥ
Genitive	manthakasya	manthakayoḥ	manthakānām
Locative	manthake	manthakayoḥ	manthakeṣu

Compound manthaka -

Adverb -manthakam -manthakāt