attrit

Meanings

1. To wear down through attrition, especially mechanical attrition.
2. To engage in attrition; to quit or drop out.
3. To be reduced in quantity through attrition.
4. To lose, or to kill, troops by attrition due to sustained firepower.

1. One who voluntarily or involuntarily leaves a company; a termed employee.

Etymology

From Latin attrītus, past participle of atterō. Said by multiple dictionaries to be a back-formation from attrition, but it is not a recent one, being centuries old.