What is the origin of haphephobia?
Haphephobia “an extreme fear or dislike of touching or being touched” is a compound of the Ancient Greek noun haphḗ “a touch” and the combining form -phobia “fear,” from Ancient Greek phóbos. Haphḗ is a derivative of the verb háptein “to grasp, sense,” which is also the source of the adjective haptic “of or relating to touch.” Ancient Greek has two letters similar to English P: pi, which represents the “p” sound in spin, and phi, which represents the aspirated “p” sound in pin. Because pi and phi are pronounced similarly, many Greek verbs containing a “p” sound regularly alternate between pi and phi across tenses and forms, which is how the verb háptein, spelled with a pi, leads to the noun form haphḗ, spelled with a phi. Haphephobia was first recorded in English in the early 1890s.