English
frogitis
From frog + -itis.
Formed from frog + -itis
Proto-Indo-European *prew- ‘to jump’
Proto-West Germanic *froggō
Old English frocga
Middle English frogge ‘a frog or toad’
English frog
Today it means
noun A supposed knee ailment caused by watching TV cross-legged for extended periods.
Language periods are conventional ranges, not dates for this word.
Etymograph / frogitis