I had a smattering of both Ancient Greek and Modern Greek when I was in college. Most of what I learned has long been forgotten but I delighted that I remember the term for “fear of Friday the thirteenth”, paraskevidekatriaphobia.
Here are a few other unpronounceable phobias:
Triskadekaphobia fear of the number 13.
Ataxophobia– Fear of disorder or untidiness.
Bromidrosiphobia-Fear of body smells.
Entomophobia- Fear of insects.
Nebulaphobia- Fear of fog
Proctophobia- Fear of rectums
Hexakosioihexekontahexaphobia: Fear of the number 666