Dictionary.com
Thesaurus.com

disyllabism

American  
[dahy-sil-uh-biz-uhm, dih-] / daɪˈsɪl əˌbɪz əm, dɪ- /
Also dissyllabism

noun

  1. the state of being disyllabic.


Etymology

Origin of disyllabism

First recorded in 1880–85; di- 1 + syllabism