ETYM Old Fren. giste abode, lodgings, French gîte, from gésir to lie, Latin jacere, prop., to be thrown, hence, to lie, from jacere to throw.
The general idea.

ETYM French, from Latin substantia, from substare to be under or present, to stand firm; sub under + stare to stand. Related to Stand.
1. That which has mass and occupies space; SYN. matter.
2. The stuff of which an object consists.