Crop up and Take effect

Crop up verb - To come to one's attention especially gradually or unexpectedly.

Take effect and crop up are semantically related in occur topic. In some cases you can use "Take effect" instead a verb "Crop up".

Take effect verb - Go into effect or become effective or operative.

Crop up and take effect are semantically related in occur topic. You can use "Crop up" instead a verb phrase "Take effect".