Etymology
Unknown element(s) + -phobia. The initial aphe- element is likely based on Ancient Greek ἁφή (haphḗ, “touch”), the same root as haphephobia. There is no Greek root φοσμ- (phosm-) or φωσμ- (phōsm-), and φῶς (phôs, “light”) can be eliminated on semantic grounds, so the middle element is probably a fanciful invention or error.
Definitions & examples from Wiktionary (CC BY-SA 3.0).