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J.K. Rowling’s thoughts
Quintus Horatius Flaccus was one of the greatest Roman Poets, more
commonly known as Horace. He gave Slughorn two of his Christian names.
The name ‘Slughorn’ derives from the (Scots) Gaelic for ‘war cry’: sluaghghairm,
which later gave rise to ‘slughorn’, a battle trumpet. I loved the word
for its look and sound, but also for its many associations. The original Gaelic
suggests a hidden ferocity, whereas the corrupted word seems to allude to the
feeler of the Arion distinctus (or common land slug), which works well for
such a seemingly sedentary, placid man. ‘Horn’ also hints at his trumpeting of
famous names and illustrious associations.