Rashi on Exodus 21:10/רש"י על שמות כ״א:י׳

1אם אחרת יקח לו IF HE TAKE HIM ANOTHER WIFE — besides her,

2שארה כסותה וענתה לא יגרע HER FOOD, HER RAIMENT AND THE MARITAL DUTY SHALL HE NOT WITHHOLD — from the maidservant whom he has already designated as his wife.

3שארה means FOOD;

4כסותה means what the literal sense of the word is:RAIMENT;

5ענתה means THE MARITAL DUTY (Ketuvot 47b).