moderate

make less strong or intense; soften

make less fast or intense

“moderate your speed”

not extreme

“a moderate penalty”

a person who takes a position in the political center

make more temperate, acceptable, or suitable by adding something else

make less severe or harsh

“He moderated his tone when the students burst out in tears”

lessen the intensity of; temper; hold in restraint; hold or keep within limits

“moderate your alcohol intake”

preside over

“John moderated the discussion”

marked by avoidance of extravagance or extremes

“moderate in his demands”

being within reasonable or average limits; not excessive or extreme

“moderate prices”