English

abluminal

From ab- + luminal.

Formed from ab- + luminal

Proto-Indo-European *h₂epo ‘off, away’

English ab-

Proto-Indo-European *lewk- ‘bright’

Proto-Indo-European *léwksmn̥

Proto-Italic *louksmən

Latin lūmen ‘lights’

Today it means

adj Away from the lumen

Language periods are conventional ranges, not dates for this word.

Etymograph / abluminal