To break out anew or come into renewed activity, as after a period of quiescence.
To break out again after a period of latency or relative inactivity; become active again, as a disease.
Origin of recrudesce
- Latin recrūdēscere to grow raw again re- re- crūdēscere to get worse (from crūdus raw kreuə- in Indo-European roots)
From American Heritage Dictionary of the English Language, 5th Edition