According to the kanajo, it was originally planned to be called 'Shofu (正風) Wakashu' which means 'right wind' (historic pass for waka poetry), but it also could be called 'Shofu (傷風)' (literally injured wind) in the Wu reading, so they changed it into 'Fuga' to avoid the negative meaning.
仮名序によると、本来、「正しき風」（由緒正しい和歌の道）という意の「正風和歌集」に命名すべきところを、呉音で「傷風」に通じるのを忌み「風雅」に改めたという。