Dies down or becomes less intense; sinks or settles downward, especially into the ground.
From Latin subsidere: sub- (under) + sidere (to sit or settle). Originally meant literally 'to sit under' or 'to sink down,' then extended to emotional states.
Subsidence is a real geological phenomenon where land literally sinks—'subsidy' comes from the same root because the government 'settles under' you with money to support you.
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