μισθὸν [14 times](noun sg masc acc) "Reward" is misthos, which means "hire," "hired service," "for hire," and "wages" in the sense of compensation for work done, therefore "pay," "fee," "recompense," and "reward." -- The Greek word translated as "reward" really means "hire," "compensation," "pay," and "recompense," what you receive for doing work. In Jesus's era, compensation was not just money but it took many forms: food, housing, salt, and so on. Jesus saw that there is both spiritual compensation and worldly compensation. It is a reward that is earned. It is not a gift. The verb form of the same root means "hired."