Commentary for Psalms 55:22

Smooth were Heb. חלקו, an expression of (above 35:6): “and slippery (וחלקלקות).”

the buttery words of his mouth Heb. מחמאת, an expression of חמאה butter. The first “mem” is a defective radical in the word, like the “mem” of מעשה and the “mem” of מאמר.

but his heart was set on war Heb. וקרב, to war.

but they are curses Heb. פתחות. Menachem (p. 147) interpreted it as an expression of swords, as (Micah 5:5): “and the land of Nimrod with its swords (בפתחיה),” with the edges of the sword. I say, however, that it is an expression of curse in Aramaic, as the Talmud (R.H. 31b) states: Amemar wrote a pethicha on her, which is a warrant decreeing excommunication.