1532, after Ulrich Zwingli (1484-1531), Swiss Protestant reformer who revolted from the Roman communion in 1516 but who differed from Luther on theological points relating to the real presence in the Eucharist.
zugzwang
Zulu
Zuni
Zurich
zwieback
Zwinglian
zydeco
zygoma
zygomatic
zygote
Zyklon