i Register
In some senses, succumb is marked as euphemistic. Watch for register when choosing this word.
ADV
almost | rapidly | eventually, finally
easily, readily
After years of dieting, she finally succumbed readily to the temptation of chocolate cake.
VERB + SUCCUMB
be likely to
PREP
to
After weeks of illness, he finally succumbed to the flu and had to stay in bed.