Depending on context you could use Reichtum or Liebling
An appropriate alternative word for medium is "intermediate."
Condemned could be a suitable alternative
The German word "Schatz" means treasure. Schatz is also widely used to address loved ones as in saying my dear or my love.
Schatz
A suitable alternative for "steal" could be "appropriate" or "acquire without permission."
Cornstarch is a suitable alternative to arrowroot for thickening sauces and soups.
treasure = Schatz treasures = Schätze Reichtümer
A suitable alternative exercise for cable pull throughs is the kettlebell swing.
A suitable alternative for marjoram in a recipe is oregano, as they have similar flavors and are both part of the mint family.
A suitable alternative for queso fresco in this recipe could be feta cheese or cotija cheese.
A suitable alternative for mineral spirits when cleaning and thinning paint is denatured alcohol.
Yes, that's the meaning. It's Schatz (meaning treasure in general). Schatzi is an belittlement of the word. In Germany you use Schatz or Schatzi to express something like Sweetheart or Honey.