andro/o
male
balan/o
glans penis
cry/o
cold
crypt/o
hidden
epididym/o
epididymis
gon/o
seed
hydr/o
water, fluid
orch/o, orchid/o, orchid/o
testis, testicle
prostat/o
prostate gland
pen/o
penis
semin/i
semen, seed
sperm/o, spermat/o
spermatozoa, semen
treat/o
monster
test/o
testis, testicle
varic/o
varicose veins
vas/o
vessel, duct; vas deferens
zo/o
animal life