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.
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.
treasure = Schatz treasures = Schätze Reichtümer
A suitable alternative for mineral spirits when cleaning and thinning paint is denatured alcohol.
A suitable alternative for fresh tomatoes in a recipe could be canned tomatoes or sun-dried tomatoes.