Strong's #665: 'epher (pronounced ay'-fer)
from an unused root meaning to bestrew; ashes:--ashes.
Brown-Driver-Briggs Hebrew Lexicon:
2) (CLBL) worthlessness (figuratively)
Part of Speech: noun masculine
Relation: from an unused root meaning to bestrew
This word is used 22 times:
Genesis 18:27: "the Lord, which am but dust and ashes:"
Numbers 19:9: "that is clean shall gather up the ashes of the heifer, and lay them up without"
Numbers 19:10: "And he that gathereth the ashes of the heifer shall wash his clothes, and be unclean"
2 Samuel 13:19: "And Tamar put ashes on her head, and rent her garment of divers colors"
Esther 4:1: "his clothes, and put on with ashes, and went out into the midst of the city, and cried"
Esther 4:3: "and wailing; and many lay in sackcloth and ashes."
Job 2:8: "withal; and he sat down among the ashes."
Job 13:12: "Your remembrances are like unto ashes, your bodies to bodies of clay."
Job 30:19: "me into the mire, and I am become like dust and ashes."
Job 42:6: "I abhor myself, and repent in dust and ashes."
Psalms 102:9: "For I have eaten ashes like bread, and mingled my drink with weeping,"
Psalms 147:16: "like wool: he scattereth the hoarfrost like ashes."
Isaiah 44:20: "He feedeth on ashes: a deceived heart hath turned him aside, that he cannot deliver"
Isaiah 58:5: "as a bulrush, sackcloth and ashes under him? wilt thou call this a fast, and an acceptable"
Isaiah 61:3: "to give unto them beauty for ashes, the oil of joy for mourning,"
Jeremiah 6:26: "gird thee with sackcloth, and wallow thyself in ashes: make thee mourning, as for an only son, most bitter"
Lamentations 3:16: "my teeth with gravel stones, he hath covered me with ashes."
Ezekiel 27:30: "upon their heads, they shall wallow themselves in the ashes:"
Ezekiel 28:18: "from the midst of thee, it shall devour thee to ashes upon the earth"
Daniel 9:3: "and supplications, with fasting, and sackcloth, and ashes:"
Jonah 3:6: "from him, and covered and sat in ashes."
Malachi 4:3: "the wicked; for they shall be ashes under the soles of your feet in the day"