English
subheadline
From sub- + headline.
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Today it means
noun A smaller, secondary headline that usually elaborates on the main headline above it.
Language periods are conventional ranges, not dates for this word.
Etymograph / subheadline