- Pila -ball, Latin
- Haemorrhoid comes from the association with bleeding.
- Haema -blood, Greek
- Rhoos -flowing, Greek
The spelling of haemorrhoid varies, the main alternatives are;
- Haemorrhoid(ectomy) - British spelling
- Hemorrhoid(ectomy) - American spelling
- Common mis-spellings; Haemorroid(ectomy), Hemorroid(ectomy)
There main variability is in the use of hem- and haem- which correspond to the
American and British spellings for hemoglobin [American] and haemoglobin
[British]. It is not uncommon to see haemorrhoid spelt without the second `h'.
Adrian P. Ireland