1590s, from Middle French désertion (early 15c.), from Late Latin desertionem (nominative desertio) "a forsaking, abandoning," noun of action from past participle stem of Latin deserere (see desert (v.)).
1. The high rate of desertion has added to the army's woes.
2. He was court-martialled for desertion.
3. The officer was convicted of desertion at a court martial.
4. He was shot for desertion in the face of the enemy.
5. He took his son's desertion as a personal affront.