Rebbi says: "she'erah" is her conjugal time, as in (Leviticus 18:6) "A man, to all the she'er (flesh) of his kin shall not draw near" (for cohabitation), and (in the same connection) (Ibid. 12, 13) "She is the she'er of your father", "She is the she'er of your mother." "kesuthah": as per its plain meaning (i.e., "her clothing.) "onathah" — "her food", as in (Devarim 8:3) "vayeanchah" and He caused you to hunger."