ward > guard ("watch and ward" was formerly a common compound sb.) warily > watchfully; carefully
8 That naught she did but wail, and often steep
That > [So that]
9 Her dainty couch with tears, which closely she did weep.
dainty > choice, delightful; hence: fine, elegant couch > bed closely > secretly
302.29
And if that any drop of slombring rest
2 Did chaunce to still into her wearie spright,
When feeble nature felt her selfe opprest,
4 Streight way with dreames, and with fantasticke sight
Of dreadfull things the same was put to flight,
6 That oft out of her bed she did astart,
As one with vew of ghastly feends affright:
8 Tho gan she to renew her former smart,
And thinke of that faire visage, written in her hart.
1 And if any drop of slumbering rest 2 Did chance to still into her weary spirit,
still > instil, infuse
3 When feeble Nature felt herself oppressed,