Lowering
来自Big Physics
wiktionary
c. 1600, "descend, sink, grow less or lower" (intransitive), from lower (adj.), comparative of low (adj.). Transitive meaning "let down, cause to descend" attested from 1650s. Related: Lowered; lowering. In the transitive sense "to cause to descend" the older verb was low. From Middle English lahghenn, (c. 1200), which continued in use into the 18c.
From Middle English louryng, louringe, lowrynge, later variant of lourand, lowrand, lourande, lowrande, equivalent to lour + -ing. Cognate with Dutch loerend(“lurking, louring”).
