Anglo-Saxon opposite numbers
Note from Politics And The English Language by George Orwell

An interesting illustration of this is the way in which the English flower names which were in use till very recently are being ousted by Greek ones, snapdragon becoming antirrhinum, forget-me-not becoming myosotis, etc. It is hard to see any practical reason for this change of fashion: it is probably due to an instinctive turning-away from the more homely word and a vague feeling that the Greek word is scientific.