Index: wp-admin/includes/class-wp-posts-list-table.php
===================================================================
--- wp-admin/includes/class-wp-posts-list-table.php	(revision 37993)
+++ wp-admin/includes/class-wp-posts-list-table.php	(working copy)
@@ -1460,7 +1460,7 @@
 
 	<?php foreach ( $hierarchical_taxonomies as $taxonomy ) : ?>
 
-			<span class="title inline-edit-categories-label"><?php echo esc_html( $taxonomy->labels->name ) ?></span>
+			<span class="title inline-edit-categories-label"><?php echo __( 'Assign ' ) . esc_html( $taxonomy->labels->name ) ?></span>
 			<input type="hidden" name="<?php echo ( $taxonomy->name === 'category' ) ? 'post_category[]' : 'tax_input[' . esc_attr( $taxonomy->name ) . '][]'; ?>" value="0" />
 			<ul class="cat-checklist <?php echo esc_attr( $taxonomy->name )?>-checklist">
 				<?php wp_terms_checklist( null, array( 'taxonomy' => $taxonomy->name ) ) ?>
@@ -1552,7 +1552,7 @@
 	<?php foreach ( $flat_taxonomies as $taxonomy ) : ?>
 		<?php if ( current_user_can( $taxonomy->cap->assign_terms ) ) : ?>
 			<label class="inline-edit-tags">
-				<span class="title"><?php echo esc_html( $taxonomy->labels->name ) ?></span>
+				<span class="title"><?php echo __( 'Assign ' ) . esc_html( $taxonomy->labels->name ) ?></span>
 				<textarea cols="22" rows="1" name="tax_input[<?php echo esc_attr( $taxonomy->name )?>]" class="tax_input_<?php echo esc_attr( $taxonomy->name )?>"></textarea>
 			</label>
 		<?php endif; ?>