Where does “bicentennially” come from?

bicentennially (English) comes from English bicentennial, from English centennial, from English -ál, from Middle English -al, from Old French -al, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

bicentennially (English): Every two hundred years

Definitions

  1. Every two hundred years

Ancestry of “bicentennially”, step by step

bicentennially traces back through two separate lines of ancestry.

via English bicentennial

StepLanguageWordMeaning
1EnglishbicentennialRelating to the 200th anniversary of an event or...
2EnglishcentennialRelating to, or associated with, the...
3English-álOf or pertaining to. Adjectival suffix appended to various words, often nouns, to produce an adjective form. Often added to words of Latin origin, but used with other words also
4Middle English-al
5Old French-alsuffix used to form adjectives from nouns
6Latin-ālis
7Proto-Italic-ālisforms relational adjectives

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Italic -ālisEvery word from Latin -ālisEvery word from English -ál