Declension table of ?gurubha

Masculine	Singular	Dual	Plural
Nominative	gurubhaḥ	gurubhau	gurubhāḥ
Vocative	gurubha	gurubhau	gurubhāḥ
Accusative	gurubham	gurubhau	gurubhān
Instrumental	gurubheṇa	gurubhābhyām	gurubhaiḥ gurubhebhiḥ
Dative	gurubhāya	gurubhābhyām	gurubhebhyaḥ
Ablative	gurubhāt	gurubhābhyām	gurubhebhyaḥ
Genitive	gurubhasya	gurubhayoḥ	gurubhāṇām
Locative	gurubhe	gurubhayoḥ	gurubheṣu

Compound gurubha -

Adverb -gurubham -gurubhāt