Godan verb with 'mu' ending, Intransitive verb
to take advantage of; to impose on; to exploit
彼は私の年の若い事に付け込んだ。He took advantage of my youth. Godan verb with 'mu' ending, Transitive verb
to enter (an item in a ledger); to make an entry (in an account book)
Also written 付け込む【つけこむ】