Triennially
Word Structure
WordHub has a local lexical record for “Triennially” with pronunciation and root analysis.
tri-
three
Forms: tri, tre
enn
year, yearly
Forms: ann, enn
-ial
of ~; like ~; having the nature of ~; the act of ~ing
Forms: al, ial, eal
-ly
like a ~; characteristic of ~; suited to ~; occuring once a ~; of or being a ~
Forms: ly