How are interpuncts used in latin?
The interpunct appears on gboard when typing in Latin, when exactly is it used?
I think it's used here because the "Dis Manibus" is an abbreviation of a longer phrase.
In this case, the "Dis Manibus" is a frequently-used inscription on gravestones like this and in full would be "Dis Manibus Sacrum" - roughly translated as "to the memory of." Often abbreviated as here, or found as "D.M.S" or just "D.M"