里帰り
さとがえり returning home to one's parents (orig. of a married person); visiting one's parents (for a prolonged period of stay)
Why it means this
里 (one's parents' home) + 帰り (returning) — a married person (traditionally a bride) going back to visit their parents' home for an extended stay.
Breakdown
Each character links to its full entry — origin story, stroke order, and readings.