フク, はっ, はつ, はら
clothing, admit, obey, discharge
JLPT4 G3 S8 F873
The relevant oracle bone form of ?features the same elements as 及, a hand + a person → spread a hand over another person's back. A bronzeware inscription form adds 舟 boat → spread boards in fashioning a boat. A seal inscription form replaces 舟 with 肉 flesh → *clothes* that spread over/*cling* to the body → *submit*; *obey* (← be closely attached to; compare 伏) → *accede* → *take (medicine) regularly* (← submit to/obey a doctor's prescription) → *counter* (for a dose of medicine/a smoke). Also, *be engaged in* and *be accustomed to*. In the derivative characters 菔 and 鵩, 服 appears in slightly different forms.
[Full Kanji Etymology List]