Hi
Nop, I’m not confused.
I simply used the term “limby” to denote old Lima models, mostly former pancake (73, 33, 42 etc) which have been re-motored with a new bogie mounted sealed 5 pole motor. Hence LIM (LIMa) BY (Hornby). Sure, this is a subjective term, I’ve seen it used numerous times on RMweb though clearly not official. It does, I think, describe the amalgamation of old Lima models with new Horny power bogies. The rest of the information I have provided and @abd968008 has expanded on, is correct.
Which part of this motor history puzzle are you is unsure of?