כָּפַףkâphaph

bend, bend down, be bent, bowed

Pronunciation: kaw-faf' · Hebrew/Aramaic (Old Testament) · H3721

Meanings

Qal: my soul is bowed down; Infinitive construct, to bend down, like a rush, his head. Passive participle (Psalms 57:7; Isaiah 58:5; Psalms 145:14)

Niph`al: shall I bow myself, toward the high God (Micah 6:6)

Same root

כַּףkaph · H3709the hollow hand or palm (so of the paw of an animal, of the sole, and even of the bowl of a dish or sling, the handle of a bolt, the leaves of a palm-tree); figuratively, power
כֵּףkêph · H3710a hollow rock

Where it appears

Appears 5 times in the Bible.

Psalms 57:6 My enemies have set a trap for me. I am weary from distress. They have dug a deep pit in my path, but they themselves have fallen into it. Interlude
Psalms 145:14 The Lord helps the fallen and lifts those bent beneath their loads.
Psalms 146:8 The Lord opens the eyes of the blind. The Lord lifts up those who are weighed down. The Lord loves the godly.
Isaiah 58:5 You humble yourselves by going through the motions of penance, bowing your heads like reeds bending in the wind. You dress in burlap and cover yourselves with ashes. Is this what you call fasting? Do you really think this will please the Lord?
Micah 6:6 What can we bring to the Lord? Should we bring him burnt offerings? Should we bow before God Most High with offerings of yearling calves?

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).