English
hodiernal
From hodiern (“of this day, present-day”) + -al (suffix forming adjectives).
Formed from hodiern ‘of this day, present-day’ + -al
Proto-Indo-European *dyew- ‘sky, heaven’
…
Proto-Italic *djous ‘sky’
Latin dies ‘a solar or sidereal day of about 24 hours’
Latin hodie ‘today’
Latin hodiernus
English hodiern
The story
Hodiern is derived from Latin hodiernus (‘of today, today’s; present, present-day; actual’), from hodiē (‘today’) (from hōc (‘this (thing)’) + diē (‘day’) (ultimately Proto-Indo-European *dyew- (‘to be bright; heaven, sky’))) + -rnus (suffix forming adjectives).
Today it means
adj Of or pertaining to the present day or today; hodiern.
Language periods are conventional ranges, not dates for this word.
Etymograph / hodiernal