WordPress at a glance
action is not described

edit_term_taxonomy action-hook . WP 2.9.0

Fires immediate before a term-taxonomy relationship is updated.

Usage

add_action( 'edit_term_taxonomy', 'action_function_name_5276', 10, 2 );
function action_function_name_5276( $tt_id, $taxonomy ){
	// action...
}
$tt_id(int)
Term taxonomy ID.
$taxonomy(string)
Taxonomy slug.

Where the hook is called

wp_update_term()
edit_term_taxonomy
_update_post_term_count()
edit_term_taxonomy
_update_generic_term_count()
edit_term_taxonomy
wp-includes/taxonomy.php 2769
do_action( 'edit_term_taxonomy', $tt_id, $taxonomy );
wp-includes/taxonomy.php 3462
do_action( 'edit_term_taxonomy', $term, $taxonomy->name );
wp-includes/taxonomy.php 3489
do_action( 'edit_term_taxonomy', $term, $taxonomy->name );

Where the hook is used (in WP core)

Does not used.