Is “Underpay” a Scrabble word?
Yes
UNDERPAY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Underpay
verb
1.To pay (someone) less than the value of their work; to pay (someone) insufficiently.
2.To pay less than is due for (something).
“The underpaid letter was returned to the sender.”