Endearment (noun)

1. An act or expression of affection or fondness.
2. A term of endearment used between people who are close or have a strong affection for each other.

Origin:

From the old french word 'endrement', meaning 'friendship, fondness'.

Examples:

1. She whispered sweet endearments to her sleeping baby.
2. He used endearments like 'sweetheart' and 'dear' when talking to his wife.
3. The couple exchanged endearments throughout their long and happy marriage.
4. The mother used endearments to show her love and affection for her children.
5. The nickname 'honey' is a common endearment used between romantic partners.