Thanks Raimey and amen Pete. This is a good start
http://www.davistownmuseum.org/PDFs/GlossaryOfFerrousMetallurgyTerms.pdf
but we need a glossary for 'pattern welded steel' production 'from the beginning' including/comparing terms used from the Far East to India to the Middle East, Russia (bulat), Eastern and Western Europe and England.
(Ya' think we could talk Bro. Larry into this one right after his trip to the Belgian patent archives and the Midlands industrial museums? )