English
long-burning
From long + burning.
Proto-Indo-European *dlongʰos ‘long’
Proto-Germanic *langaz ‘long’
Proto-West Germanic *lang ‘long’
Old English lang ‘long, tall, lasting’
Middle English long
English long
Today it means
adj Which burns faster than comparable objects.
Language periods are conventional ranges, not dates for this word.
Etymograph / long-burning