untighten

And I untighten'd next the tress   About her neck; her cheek once more Blush'd bright beneath my burning kiss:   I propp'd her head up as before,   Only, this time my shoulder bore Her head, which droops upon it still:   The smiling rosy little head, So glad it has its utmost will,   That all it scorn'd at once is fled,   And I, its love, am gain'd instead!