noun
pleasantry
PLEZ-un-tree/ˈplezntri/
A polite, lighthearted remark.
The neighbor offers a warm pleasantry while passing the garden gate.

Etymology
The base carries a witty or jocular sense as well as “pleasant”: a pleasantry was a light, humorous saying. That conversational lightness connects it with the modern polite or friendly remark.
In context
hazarded a pleasantry which met with no response
More examples
- We exchange pleasantries while we wait for the elevator.
- After a few pleasantries, the interview begins.
- His gentle pleasantry puts the nervous guests at ease.
Forms
pleasantry · pleasantries