sesquicentennial

pronunciation

How to pronounce sesquicentennial in British English: UK [ˌseskwɪsen'tenɪəl]word uk audio image

How to pronounce sesquicentennial in American English: US [ˌseskwɪsen'tenɪrl] word us audio image

Word Origin

sesquicentennial (adj.)
"pertaining to a century and a half," 1878, from sesqui- + centennial. As a noun from 1880; first recorded reference is to Baltimore's.