Ruderpost or Rudderpost: How To spell?
The word Ruderpost is misspelled against Rudderpost, a noun meaning "The shank of a rudder, having the blade at one end and the attachments for operating it at the other."
Rudderpost has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Ru & erpost which should not be misspelled with single 'D'
Wrong Spelling:  Ru-d-erpost  Correct Spelling:  Ru-dd-erpost 
Check more misspelled words of Rudderpost to spell it correct.