抜かす
ぬかす · nukasu · JLPT N1 · verb-godan
to omit
抜 (nuku, pull out) + かす: to pull out a piece and let it drop, i.e. leave it out
抜く means to pull out or remove. 抜かす adds the causative-style かす ending, so it means to skip or leave out an item from a sequence.