where does the term dead ringer come from
Dead ringer (idiom) Dead ringer is an idiom in English. It means "an exact duplicate" and derives from 19th-century horse-racing slang for a horse presented "under a false name and pedigree"; "ringer" was a late nineteenth-century term for a duplicate, usually with implications of dishonesty, and "dead" in this case means "precise", as in "dead centre".[1]
Eternity ring An eternity ring, also known as an infinity ring, is a woman's ring, worn on the hand, comprising a band of precious metal (usually gold) set with a continuous line of identically cut gemstones (usually diamonds)[1] to symbolize never-ending love, usually given by a spouse to his or her wife on the occasion of a significant anniversary, typically after 1 or more years of marriage date[citation needed] Because the presence of stones all the way round the eternity ring can make it cumbersome to wear, the alternative is to have the stones across the face of the ring only. This is sometimes referred to as a "half-eternity" ring rather than a "full" eternity ring.