Wherefore vs. Whereafter

Why, for what reason, because of what.

Therefore.

(archaic) Because of which.

An intent or purpose; a why.

For which reason; so; - used relatively.

Example: ‘Wherefore by their fruits ye shall know them.’;

For what reason; why; - used interrogatively.

Example: ‘But wherefore that I tell my tale.’; ‘Wherefore didst thou doubt?’;

the reason why.

the cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'

for which reason;

Example: ‘wherefore do I receive this honor?’;

(formal) After which time or event.

Example: ‘It is a matter for it to determine whether to make such application, whereafter the Trial Chamber will determine whether the material is so admissible - [http://www.un.org/icty/milosevic/trialc/decision-e/050517.htm]’;