The difference between Aid and Succor

When used as nouns, aid means help, whereas succor means aid, assistance or relief given to one in distress.

When used as verbs, aid means to (give) support (to), whereas succor means to give such assistance.

check bellow for the other definitions of Aid and Succor

Aid as a noun (uncountable):

Help; assistance; succor, relief.

Examples:

"He came to my aid when I was foundering."
Aid as a noun (countable):

A helper; an assistant.
Aid as a noun (countable):

Something which helps; a material source of help.

Examples:

"Slimming aids include dietary supplements and appetite suppressants."
Aid as a noun (countable, British):

An historical subsidy granted to the crown by Parliament for an extraordinary purpose, such as a war effort.
Aid as a noun (countable, British):

An exchequer loan.
Aid as a noun (countable, legal):

A pecuniary tribute paid by a vassal to his feudal lord on special occasions.
Aid as a noun (countable):

An aide-de-camp, so called by abbreviation.

Examples:

"The incompetent general's brilliant aid often made priceless suggestions."

Aid as a verb (transitive):

To (give) support (to); to further the progress of; to help; to assist.

Succor as a noun (archaic, or, obsolete, American spelling):

Aid, assistance or relief given to one in distress; ministration.

Succor as a verb (transitive, American spelling):

To give such assistance.