Where does “semiquincentennial” come from?

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

semiquincentennial (English): Of or relating to a 250th anniversary

Definitions

  1. Of or relating to a 250th anniversary

Ancestry of “semiquincentennial”, step by step

StepLanguageWordMeaning
1EnglishquincentennialRelating to a 500th anniversary; A 500th...
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
Every word from Proto-Italic -ālisEvery word from Latin -ālisEvery word from English -ál
semiquincentennial — Etymology, Origin & Word History | Etymology Explorer