Pivotal (adj)
piv-ot-al
Of crucial importance in relation to the development or success of something else.
Late Middle English from French, probably from the root of dialect pue ‘tooth of a comb’ and Spanish pu(y)a ‘point’. The verb dates from the mid 19th century.
Example sentences
“He was pivotal in instigating the reaction.”
Word of the Day - Semiquincentennial (noun) se-mee-kwin-sen-tee-nee-al
