English
indexal
From index + -al.
Formed from index + -al
Proto-Indo-European *deyḱ- ‘to point out’
Proto-Indo-European *déyḱeti ‘to be pointing out’
Proto-Italic *deikō ‘to show’
Latin dīcō ‘to say, indicate’
Latin index ‘discoverer, informer; forefinger’
English index
Today it means
adj Synonym of indexical.
Language periods are conventional ranges, not dates for this word.
Etymograph / indexal