Abandon

To cast or drive out; to banish; to expel; to reject.

To give up absolutely; to forsake entirely ; to renounce utterly; to relinquish all connection with or concern on; to desert, as a person to whom one owes allegiance or fidelity; to quit; to surrender.

Reflexively: To give (one's self) up without attempt at self-control; to yield (one's self) unrestrainedly; -- often in a bad sense.

To relinquish all claim to; -- used when an insured person gives up to underwriters all claim to the property covered by a policy, which may remain after loss or damage by a peril insured against.

Abandonment; relinquishment.

A complete giving up to natural impulses; freedom from artificial constraint; careless freedom or ease.

To leave behind or give up

stop maintaining or insisting on; of ideas or claims; "He abandoned the thought of asking for her hand in marriage"; "Both sides have to give up some claims in these negotiations"

a feeling of extreme emotional intensity; "the wildness of his anger"

leave someone who needs or counts on you; leave in the lurch; "The mother deserted her children"