The realm, state, or condition of being a belltopper; excellence or superiority.
Formed from 'belltopper' plus '-dom,' a suffix meaning realm or domain (like kingdom, dukedom). Creates an abstract noun.
This word is a perfect example of how English speakers playfully used '-dom' to create adjective-based nouns in the early 20th century—most of these coined words disappeared, making 'belltopperdom' a linguistic fossil.
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