Phonosemantic compound. 贝 represents the meaning and 剌 represents the sound. Based on the original meaning "profit". The meaning later shifted to "rely on" and "blame". Simplified form of 賴.
rely, depend on; accuse falsely; to depend on; to hang on in a place; bad; to renege (on promise); to disclaim; to rat (on debts); rascally; to blame; to put the blame on