part way 
adverb
Part of the way: part way along the corridor he stopped...
- However, the light triangular base doesn't lend itself to keeping the joystick steady on a desk or feeling comfortable while held, and the support part-way down the joystick actually started to wear at my hand before long.
- It was only part-way into the chase that Simon realised the two suspects on foot were carrying firearms so he immediately began to give a running commentary to his colleagues over his radio so they could call for back-up.
- You know, we're already part-way into the term.