noun tet·ra·gram \ˈte‧trəˌgram, -raa(ə)m\

Definition of tetragram

  1. :  a word of four letters :  tetragrammation

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Origin and Etymology of tetragram

Middle Greek tetragrammon, from neuter of Late Greek tetragrammos having four letters, from Greek tetra- + -grammos (from gramma letter)

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to criticize severely

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