grieving

transitive verb grieved, grieving

1. to cause to feel grief; afflict with deep, acute sorrow or distress
2. to challenge (some action, decision, etc. of management) by filing and pursuing a grievance
3. Archaic to harm; injure

Origin: ME greven < OFr grever < L gravare, to burden, grieve < gravis, heavy, grievous: see grave

intransitive verb

1. to feel deep, acute sorrow or distress; mourn
2. to grieve some action, decision, etc. of management