The world, realm, or profession of grocers collectively; the grocery business or industry as a domain.
From grocer plus the suffix -dom (meaning domain or realm). This suffix, from Old English, creates nouns referring to territories, professions, or spheres of influence.
The -dom suffix is fascinating because it originally meant 'kingdom' but now describes any specialized world — we have 'Christendom' and 'grocerdom' from the same root!
Complete word intelligence in one call. Free tier — 50 lookups/day.