Swelter vs Simmer - What's the difference?

In intransitive terms the difference between swelter and simmer

is that swelter is to perspire greatly from heat while simmer is to cook or undergo heating slowly at or below the boiling point.

(en verb)

To suffer terribly from intense heat.

(Samuel Taylor Coleridge)

To perspire greatly from heat.

(en noun)

Intense heat.

The summer swelter did not relent until late in September, most years.

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* simber (obsolete)

(-)

The state or process of simmering.

The kettle was kept on the simmer .

To cook or undergo heating slowly at or below the boiling point.

The soup simmered on the stove.

To cause to cook or to cause to undergo heating slowly at or below the boiling point.

Simmer the soup for five minutes, then serve.

* coddle

* simmer down

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