Apeirophobia is the fear of infinity; a pretty reasonably thing to be afraid of. I got this from the Pobia list, which appears to be a pretty exhaustive list. I have no idea how authoritative it is, but it seems to go on forever, so enter with caution if you're Apeirophobic. I didn't see a listing for 'fear of really long phobia lists' or 'fear of self referential phobia names' so how complete can it be? This whole topic is making me uncomfortable. I hope next week's word is more soothing.