Lastly

1.

(In the last place, finally, in conclusion. -last minute at the latest possible time when an event can be altered. or influenced. -last post the second bugle call of the British military service, giving notice of the time to retire for the night. -last sleep the last sleep that leads to death. -last straw a final trouble or annoyance that results in a breakdown, etc. -Last Supper the supper of Jesus apt His disciples on the ever His Crucifixion. -last word the final word or speech, something re graded as perfect, very latest style) ចុងបំផុត, ក្រោយបំផុត, តូចបំផុត, អាក្រក់បំផុត, ជាទីបំផុត, ទីបំផុត
Example: Firstly, it is too far away, secondly, we haven't time, and hilly, I don't want to go.

1.

In the last place; in conclusion.

2.

At last; finally.