ungentlenesse: discourtesy; Phebe perhaps also accuses Ganimed of being un- (without) gentle (with play on genital) i.e. of having "no balls"

studie: deliberate intention, endeavor, aim

despitefull: spiteful

Looke upon: regard favorably, hold in esteem

service: devotion

fantasie: imagination; also, wanton lusts of body, lechery, libido

all: Silvius says all nine times in the course of five lines. This points out the irrational mind of the love, for it is impossible to be all (entirely) made (comprised) of eleven different things.

passion: emotion; also sexual desire

wishes: The lover curses himself with wishes (lust, wantonness, libido)

observance: dutiful respect

patience: A lover's desire for patience (i.e. for his lady-love to be "patient" the technical term for the passive role in intercourse) is marked by impatience (impatient sexual desire).

triall: endurance

I will satisfie you,/I wil content you: These lines both make sense whether addressed to Orlando or Silvius; Whether address to Orlando or Silvius, Rosalind promises that she will a) content (sexually satisfy) him with what pleases (sexually gratifies).