boughts > coils

4 Pointed with mortal sting. Of her there bred

mortal > lethal

5 A thousand young ones, which she daily fed, 6 Sucking upon her poisonous dugs; each one 7 Of sundry shapes, yet all ill-favoured.

Of sundry shapes > [Each one was different]

8 Soon as that uncouth light upon them shone,

Soon > [As soon] uncouth > unaccustomed

9 Into her mouth they crept, and sudden all were gone.

101.16

Their dam vpstart, out of her den effraide,
2 And rushed forth, hurling her hideous taile
About her cursed head, whose folds displaid
4 Were stretcht now forth at length without entraile.
She lookt about, and seeing one in mayle
6 Armed to point, sought backe to turne againe;
For light she hated as the deadly bale,
8 Ay wont in desert darknesse to remaine,
Where plaine none might her see, nor she see any plaine.