adown > down

7 That themselves dipping in the silver dew,

That > [So that]

8 Their fleecy flowers they tenderly did steep, 9 Which drops of crystal seemed for wantonness to weep.

wantonness > wantonness or, conceivably: wantons: licentious people

212.62

Infinit streames continually did well
2 Out of this fountaine, sweet and faire to see,
The which into an ample lauer fell,
4 And shortly grew to so great quantitie,
That like a little lake it seemd to bee;
6 Whose depth exceeded not three cubits hight,
That through the waues one might the bottom see,
8 All pau'd beneath with Iaspar shining bright,
That seemd the fountaine in that sea did sayle vpright.

1 Infinite streams continually did well 2 Out of this fountain, sweet and fair to see, 3 Which into an ample laver fell,

laver > [basin of the fountain]

4 And shortly grew to so great quantity