Hecate, the ruler of the three witches in Shakespeare's The Tragedy of Macbeth, is named for the Greek goddess of witchcraft. In Greek, Hecate is spelled with a k—as in Hekate—and the name is pronounced [he-KAH-tay] or [he-KAH-tee], with the stress on the middle syllable. In Shakespeare's English, it is often pronounced [HEK-ut] or [HEK-ah-tee], with the stress on the first syllable.
Siward, the English general and Earl of Northumberland who leads the English forces in the battle against Macbeth, is pronounced [SEE-werd] and sometimes even [SEE-erd]. Often, the sound of the r is dropped completely, as in [SYOO-uhd]. In all variations of the name's pronunciation, the emphasis is placed on the first syllable. Young Siward, who is killed in battle, is Siward's son, so his name is pronounced the same as his father's.