Luke 22:31

Hath desired [ε ξ η τ η σ α τ ο]. Only here in New Testament. It sometimes means to obtain by asking, or to beg off. So Xenophon, "Anabasis," 1, 1, 3. The mother of Cyrus, who is charged with an attempt to kill his brother, begged him off [ε ξ α ι τ η σ α μ ε ν η]. Rev., in margin, obtained you by asking. The result proved that Satan had obtained him for the time.

Sift [σ ι ν ι α σ α ι]. Only here in New Testament.

Wheat [σ ι τ ο ν]. A general term, grain.