the.com/volunteer
the only worker whose paycheck is the warm feeling you can't deposit
means A person who freely offers to do something, especially help or work, without being paid or compelled.
from From French volontaire, rooted in Latin voluntarius, 'of one's own will,' from voluntas, 'will' or 'choice' — itself tied to velle, 'to wish.' It first marched into English in a military sense around the early 1600s, naming a man who joined up of his own accord rather than being conscripted; only later did it spread to anyone offering unpaid effort by choice.
originFrom Latin voluntarius, meaning of one's free will
economic valueUnpaid labor worth trillions to global economies yearly
longevity perkStudies link regular volunteering to lower mortality risk
plant worldSelf-seeded crops are called volunteer plants by farmers
military rootOnce meant soldiers who enlisted instead of being conscripted