tetragram

[ te-truh-gram ]
/ ˈtɛ trəˌgræm /

noun

a word of four letters.

Origin of tetragram

1860–65; < Greek tetrágrammon, noun use of neuter of tetrágrammos having four letters, equivalent to tetra- tetra- + grámm(a) letter (see -gram1) + -os adj. suffix

British Dictionary definitions for tetragram

tetragram
/ (ˈtɛtrəˌɡræm) /

noun

any word of four letters