I always thought it was Oz-ee-man-DIE-as
But the oh so trustworthy wikipedia says otherwise
(
Mrs Trellis GIN,
Mon 23 Feb 2009, 9:18,
archived)
You
are right, well according to the childrens programme Ace of Wands, which had an owl of the same name
(
lordy lordy,
Mon 23 Feb 2009, 10:13,
archived)