fear of death
A straightforward compound meaning the fear or terror of dying. Used in both everyday and literary contexts.
死の恐怖にかられた。
I was seized by the fear of death.
彼は死の恐怖と闘っている。
He is struggling with the fear of death.
Compound of 死 (death) + の (possessive particle) + 恐怖 (fear). The derivation is transparent.