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tripersonality

American  
[trahy-pur-suh-nal-i-tee] / ˌtraɪ pɜr səˈnæl ɪ ti /

noun

(sometimes initial capital letter)
  1. the state or condition of being tripersonal; existence in three persons, as the Godhead.


Etymology

Origin of tripersonality

First recorded in 1665–75; tripersonal + -ity