noun
on one's way; while going
Almost always used adverbially as 来しなに, meaning 'on the way here' or 'while coming'. Refers to an action done en route to the current location.
来しなにコンビニでおにぎりを買ってきた。
I bought a rice ball at the convenience store on my way here.
来しなに駅前で友達に会った。
I ran into a friend in front of the station on my way here.