Declension table of ?rathamitra

Masculine	Singular	Dual	Plural
Nominative	rathamitraḥ	rathamitrau	rathamitrāḥ
Vocative	rathamitra	rathamitrau	rathamitrāḥ
Accusative	rathamitram	rathamitrau	rathamitrān
Instrumental	rathamitreṇa	rathamitrābhyām	rathamitraiḥ rathamitrebhiḥ
Dative	rathamitrāya	rathamitrābhyām	rathamitrebhyaḥ
Ablative	rathamitrāt	rathamitrābhyām	rathamitrebhyaḥ
Genitive	rathamitrasya	rathamitrayoḥ	rathamitrāṇām
Locative	rathamitre	rathamitrayoḥ	rathamitreṣu

Compound rathamitra -

Adverb -rathamitram -rathamitrāt