Common words:
* Actress
* Baroness
* Duchess
* Empress
* Goddess
* Hostess
* Lioness
* Princess
* Queen
* Waitress
* Witness
Less common words:
* Abbess
* Countess
* Governess
* Marchioness
* Shepherdess
* Tigress
* Viscountess
Words with "-ess" that do not denote a feminine form:
* Duchess (a type of fabric)
* Goddess (a type of pie)
* Duchess (a type of potato)
There are many more words ending in "-ess", and it's worth noting that the use of "-ess" to denote the feminine form is becoming less common in modern English, as people are opting for gender-neutral terms.