buttery russian

• ма́сляный

  oily

  buttery

• масляни́стый

  oily, buttery

• ма́сленный

  oily, buttery, oil-based, made with oil

  oil (as in oil painting)

  languid, lustful, greasy (figurative), oleaginous (figurative)

• му́сленный

  buttery, buttered