xù or chù (畜)

as chù, it simply means “a domesticated animal;” as xù, it means “to rear or cultivate, to accumulate, or even to restrain (the willfulness of a prince, as in 畜君);” the pair of characters in Sùwèn 3.6, 畜積 (xù jī) has become a common expression, which means “to gather together,” though I’ve rendered them as individual characters in that passage.