The difference between Aid and Bestead

When used as verbs, aid means to (give) support (to), whereas bestead means to help, assist.

Aid is also noun with the meaning: help.

Bestead is also adjective with the meaning: placed (in a given situation).

check bellow for the other definitions of Aid and Bestead

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.

Bestead as an adjective (archaic):

Placed (in a given situation); beset.
Bestead as an adjective (obsolete):

Disposed mentally; affected.

Examples:

"sorrowfully bested"
Bestead as an adjective (obsolete):

Provided; furnished.