See the partially completed example below.
The road was partially blocked by a broken car
The road was partially blocked by a broken car.BDSR Page 11
I’ll admit I was partly to blame.
Partly because it helps me keep in shape, partly because...
To some extent, she was responsible for the accident
You aren’t completely right, you know, only partly right.
[adverb] - to some degree but not completelySlow German - Steiff