separate from
secede.
withdraw
secede
separarse
secede
secede
To give up means to simply stop trying at something.
Secede means to withdraw from membership of an alliance e.g. With the growth of self-government in Scotland, some are already suggesting that they should secede from the United Kingdom and go it alone.
The answer to your question is "secede."
To cede land is to give up land.
Give up means to surrender or cede something.