The Collaborative International Dictionary
Triliterality
Triliterality \Tri*lit`er*al"i*ty\, Triliteralness
\Tri*lit"er*al*ness\, n.
The quality of being triliteral; as, the triliterality of
Hebrew roots.
--W. D. Whitney.
Wiktionary
triliterality
n. The quality of being triliteral.