I received a letter from my professional liability insurer informing me of changes to my policy in my next policy year.  Among them: in the definition of “professional services”  “pro bono” services will be replaced with “eleemosynary” services.  This is not a typo.  It means “relating to or dependent on charity; charitable.”  

The Oxford English Dictionary explains its origins:    

Late 16th century (as a noun denoting a place where alms were distributed): from medieval Latin eleemosynarius, from late Latin eleemosyna ‘alms’, from Greek eleēmosunē ‘compassion’ (see alms).