Verb aphrizō (to foam) in the Gospels-Acts

(Translation from NRSV)


Mark

9: 18and whenever it seizes him, it dashes him down; and he foams (aphrizō) and grinds his teeth and becomes rigid; and I asked your disciples to cast it out, but they could not do so."
9: 20And they brought the boy to him. When the spirit saw him, immediately it convulsed the boy, and he fell on the ground and rolled about, foaming (aphrizō) at the mouth.