The state, position, or role of being a bridegroom; the status of a newly-married husband or man about to be married.
From bridegroom plus abstract noun suffix -ship (meaning state or position). Parallels words like 'friendship' or 'leadership' in formation.
The -ship suffix creates abstract nouns for roles and relationships, but we rarely use bridegroomship today because modern English prefers 'groom's role' or just 'bridegroom'—some compounds work better than others.
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