Polylang | Woocommerce | Product Attributes | set Language

index.php

<?php

add_action( 'wp_loaded', 'action_wp_loaded_23235' );

function action_wp_loaded_23235() {
	$taxonomies = wc_get_attribute_taxonomy_names();

	$attributes_terms = get_terms(
		[
			'taxonomy'   => $taxonomies,
			'hide_empty' => false
		]
	);

	foreach ( $attributes_terms as $term ) {
		pll_set_term_language( $term->term_id, 'uk' );
	}
}