落户
luò hù · HSK 7
to settle
🏠 落 land/settle + 户 household = land your household somewhere = set up home
落 means to fall or land, and 户 means household or door. To make your household come to rest in a place is to settle there and register as a resident.
落 — grass radical 艹 + 洛 (water 氵 + 各)
Originally written with the grass radical 艹 over 洛, depicting leaves falling from plants. 洛 serves as the phonetic component (giving the luò sound) while 艹 supplies the meaning of vegetation. The sense extended from 'leaves falling' to the general meaning of falling, dropping, or settling down.
户 — single-leaf door (half of 門)
户 is a pictograph showing a single-leaf door, originally drawn as half of 門 (a double door). It came to mean 'door,' then by extension 'household' or 'family,' since a door marks one dwelling. Today it commonly means 'household' or 'account.'