lower

nouns

the lower of two berths

verbs

move something or somebody to a lower position
"take down the vase from the shelf"
is derived from
antonym
set lower
"lower a rating"; "lower expectations"
make lower or quieter
"turn down the volume of a radio"
is derived from
cause to drop or sink
"The lack of rain had depressed the water level in the reservoir"
is derived from
look angry or sullen, wrinkle one's forehead, as if to signal disapproval