Abandon

To leave something or someone behind forever, often in a sudden or uncaring way; or to completely give up an activity, idea, or habit.

From Old French *abandoner* meaning “to surrender, give up,” from the phrase *à bandon* meaning “at one’s disposal, in one’s power.” Earlier roots go back to a Germanic word for a ‘ban’ or proclamation, so it originally suggested putting something under someone else’s control.