Declension table of ?sidhman

Masculine	Singular	Dual	Plural
Nominative	sidhmā	sidhmānau	sidhmānaḥ
Vocative	sidhman	sidhmānau	sidhmānaḥ
Accusative	sidhmānam	sidhmānau	sidhmanaḥ
Instrumental	sidhmanā	sidhmabhyām	sidhmabhiḥ
Dative	sidhmane	sidhmabhyām	sidhmabhyaḥ
Ablative	sidhmanaḥ	sidhmabhyām	sidhmabhyaḥ
Genitive	sidhmanaḥ	sidhmanoḥ	sidhmanām
Locative	sidhmani	sidhmanoḥ	sidhmasu

Compound sidhma -

Adverb -sidhmam