Solatium is a form of compensation

Damages

In law, damages is an award, typically of money, to be paid to a person as compensation for loss or injury; grammatically, it is a singular noun, not plural.- Compensatory damages :...

 for emotional rather than physical or financial harm.

Scots law

It is used in Scots law

Scots law

Scots law is the legal system of Scotland. It is considered a hybrid or mixed legal system as it traces its roots to a number of different historical sources. With English law and Northern Irish law it forms the legal system of the United Kingdom; it shares with the two other systems some...

 mainly to denote reparation for pain and suffering in personal injury cases (although it can also be awarded in other types of cases). In this respect it is similar, but not identical, to the English law

English law

English law is the legal system of England and Wales, and is the basis of common law legal systems used in most Commonwealth countries and the United States except Louisiana...

 concept of general damages; Scots law damages are divided into pecuniary and non-pecuniary losses, rather than general and special damages.

By US DOD

In Iraq and Afghanistan, the US Department of Defense

United States Department of Defense

The United States Department of Defense is the U.S...

(DOD) provides monetary assistance in the form of solatia and condolence payments to Iraqi and Afghan nationals who are killed, injured, or incur property damage as a result of U.S. or coalition forces’ actions during combat.

Etymology

The word solatium entered English during the 1810s, as a loanword from Latin sōlātium or sōlācium.