'Maid servant' in the Bible

Laban also gave his servant woman Zilpah to Leah to be her maidservant.

Laban also gave his woman servant Bilhah to his daughter Rachel to be her maidservant.

You are to do your work for six days, but on the seventh day you are to refrain from work so that your ox and donkey may rest, and so the son of your maidservant and the alien may be refreshed.

Hannah made a vow: "LORD of the Heavenly Armies, if you just look at the misery of your maid servant, remember me, and don't forget your maid servant. If you give your maid servant a son, then I'll give him to the LORD for all the days of his life, and a razor is never to touch his head."

Don't consider your maid servant a worthless woman. Rather, all this time I've been speaking because I'm very anxious and distressed."

Return to me and have mercy on me; clothe your servant with your strength and deliver the son of your maid servant.