Declension table of ?durmanman

Neuter	Singular	Dual	Plural
Nominative	durmaṇma	durmaṇmanī	durmaṇmāni
Vocative	durmaṇman durmaṇma	durmaṇmanī	durmaṇmāni
Accusative	durmaṇma	durmaṇmanī	durmaṇmāni
Instrumental	durmaṇmanā	durmaṇmabhyām	durmaṇmabhiḥ
Dative	durmaṇmane	durmaṇmabhyām	durmaṇmabhyaḥ
Ablative	durmaṇmanaḥ	durmaṇmabhyām	durmaṇmabhyaḥ
Genitive	durmaṇmanaḥ	durmaṇmanoḥ	durmaṇmanām
Locative	durmaṇmani	durmaṇmanoḥ	durmaṇmasu

Compound durmanma -

Adverb -durmaṇma -durmaṇmam