Drossy vs Drowsy - What's the difference?

As adjectives the difference between drossy and drowsy

is that drossy is worthless while drowsy is inclined to drowse; heavy with sleepiness; lethargic; dozy.

(en-adj)

worthless

* 1602 : , act V scene 2

Thus has he, and many more of the same breed that I

know the drossy age dotes on, only got the tune of the

time and, out of an habit of encounter, a kind of

yeasty collection, which carries them through and

through the most profane and winnowed opinions

(er)

Inclined to drowse; heavy with sleepiness; lethargic; dozy.

I was feeling drowsy and so decided to make a cup of coffee to try to wake myself up.

Disposing to sleep; lulling; soporific.

It was a warm, drowsy summer afternoon.

Dull; stupid.

* drowsiness