Catarhous or Catarrhous: How To spell?
The word Catarhous is misspelled against Catarrhous, an adjective meaning "Catarrhal."
Catarrhous has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings cata & hous which should not be misspelled with single 'R'
Wrong Spelling:  cata-r-hous  Correct Spelling:  cata-rr-hous 
Check more misspelled words of Catarrhous to spell it correct.