Conceive

To conceive is to form an idea or plan in your mind. It is also used to mean becoming pregnant and starting the development of a baby.

From Latin 'concipere', meaning 'to take in, to receive', from 'com-' and 'capere' ('to take'). The mental sense grew from the idea of 'taking in' thoughts, while the biological sense refers to 'taking in' new life.