Verb katapontizō (to sink, to drown) in the Bible

(Translation from NRSV for the New Testament and Brenton for the Septuagint with a few modifications for a more literal meaning)

Matthew

14: 30But when he noticed the strong wind, he became frightened, and beginning to sink (katapontizō), he cried out, "Lord, save me!"
18: 6"If any of you put a stumbling block before one of these little ones who believe in me, it would be better for you if a great millstone were fastened around your neck and you were drowned (katapontizō) in the depth of the sea.

Exodus (LXX)

15: 4He has cast the chariots of Pharao and his host into the sea, the chosen mounted captains: they sank (katapontizō) in the Red Sea.

2 Samuel (LXX: 2 Kings)

20: 19I am a peaceable one of the strong ones in Israel; but thou seekest to destroy a city and a mother-city in Israel: why dost thou seek to sink (katapontizō) the inheritance of the Lord?
20: 20And Joab answered and said, Far be it, far be it from me, that I should sink (katapontizō) or destroy.

Lamentations (LXX)

2: 2Beth. In the day of his wrath the Lord has sunk (katapontizō) her as in the sea, and not spared: he has brought down in his fury all the beautiful things of Jacob; he has brought down to the ground the strong-holds of the daughter of Juda: he has profaned her king and her princes.
2: 5He. The Lord is become as an enemy: he has sunk (katapontizō) Israel as in the sea, he has sunk (katapontizō) her palaces: he has destroyed his strong-holds, and has multiplied the afflicted and humbled ones to the daughter of Juda.

Psalms (LXX)

55 (54): 10Sink (katapontizō) them, O Lord, and divide their tongues: for I have seen iniquity and gainsaying in the city.
69 (68): 3I am stuck fast in deep mire, and there is no standing: I am come in to the depths of the sea, and a storm has drowned (katapontizō) me.
69 (68): 16Let not the waterflood drown (katapontizō) me, nor let the deep swallow me up; neither let the well shut its mouth upon me.
124 (123): 4verily the water would have drowned (katapontizō) us, our soul would have gone under the torrent.

Lamentations (LXX)

10: 12The words of a wise mouth are gracious: but the lips of a fool will sink (katapontizō) him.