Declension table of ?tigdha

Masculine	Singular	Dual	Plural
Nominative	tigdhaḥ	tigdhau	tigdhāḥ
Vocative	tigdha	tigdhau	tigdhāḥ
Accusative	tigdham	tigdhau	tigdhān
Instrumental	tigdhena	tigdhābhyām	tigdhaiḥ tigdhebhiḥ
Dative	tigdhāya	tigdhābhyām	tigdhebhyaḥ
Ablative	tigdhāt	tigdhābhyām	tigdhebhyaḥ
Genitive	tigdhasya	tigdhayoḥ	tigdhānām
Locative	tigdhe	tigdhayoḥ	tigdheṣu

Compound tigdha -

Adverb -tigdham -tigdhāt