Abarim Publications' online Biblical Hebrew Dictionary
מעך
The verb מעך (ma'ak) means to press or squeeze. This verb occurs a mere three times in the Bible. Once to denote a method of castration (Leviticus 22:24), once to describe how a spear is pushed into the ground (1 Samuel 26:7), and once to indicate how nipples are fondled (Ezekiel 23:3).