Eternity rhymes with:
fraternity, fraternity, modernity, affinity, alkalinity, amenity, community, conaty, dignity, disunity, divinity, femininity, fraternity, gaynatie, immunity, indemnity, indignity, infinity, inhumanity, insanity, masculinity, mcginnity, modernity, opportunity, profanity, salinity, sanity, serenity, solemnity, trinity, unity, vanity, vicinity