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Definitely not Arabic, but it _may_ have entered Hindi through Persian although the root exists both for Avestan and Sanskrit ("gam" lost, missing, disappeared"). Reminder that the parent languages of modern Persian and Hindi (Avesan/Sanskrit) are very much related.
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Based on these words you posted: "gum-nam, gum-rah" etc I am inclined to believe these came directly from Persian, and not through Sanskrit. Gum - lost (Persian) naam - name (Persian) rah - route, path (Persian) Reminder that Persian was a major language spoken in the region.
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