1740, an instruction in musical scores, from Italian segue, literally "now follows," meaning to play into the following movement without a break, third person singular of seguire "to follow," from Latin sequi "to follow," from PIE root *sekw- (1) "to follow." Extended noun sense of "transition without a break" is from 1937; the verb in this sense is first recorded 1958.
He segued into another discourse
segmental
segmentation
segregate
segregation
segregationist
segue
Segway
seigneur
seignior
seigniorage
seine