Declension table of śamatha

Masculine	Singular	Dual	Plural
Nominative	śamathaḥ	śamathau	śamathāḥ
Vocative	śamatha	śamathau	śamathāḥ
Accusative	śamatham	śamathau	śamathān
Instrumental	śamathena	śamathābhyām	śamathaiḥ śamathebhiḥ
Dative	śamathāya	śamathābhyām	śamathebhyaḥ
Ablative	śamathāt	śamathābhyām	śamathebhyaḥ
Genitive	śamathasya	śamathayoḥ	śamathānām
Locative	śamathe	śamathayoḥ	śamatheṣu

Compound śamatha -

Adverb -śamatham -śamathāt