Grieve for and Take on

Grieve for verb - To feel or express sorrow for.

Take on and grieve for are semantically related. in lament topic. In some cases you can use "Take on" instead a verb "Grieve for", when it comes to topics like regret.

Take on verb - To enter into contest or conflict with.

Grieve for and take on are semantically related. Sometimes you can use "Grieve for" instead a verb "Take on".