ithyo-, ithy-

(Greek: straight)

ithyfacient
Causing the erection of the penis.
ithygenic
Causing the erection of the penis.
ithyphallalgia (s) (noun) (no pl)
Painfulness when the penis is in erection: Some reasons for ithyphallalgia can be a bladder infection, penile cancer, or a peyronie disease.
ithyphallophobia (s) (noun) (no plural)
A revulsion of seeing or having an erect penis: There are a few people who have problems in their sexual relationships because of their ithyphallophoba, even when they think about their partner being in a phase of sexual arousal.