Incidentally

1.

(With less attention or emphasis, as a less important part, by the way, in passing, apropos, by chance, accidentally, fortuitously) ដោយចៃដន្យ, ជាបន្ទាប់បន្សំ, ដោយពេល
Example: Sothun talked about Huahin, but mentioned his work there only incidentally.

2.

(បច្ចេកទេស) ដោយចៃដន្យ