suede: Etymology: French gants de Suède Swedish gloves 1 : leather with a napped surface

bayou: Etymology: Louisiana French, from Choctaw bayuk 1 : a creek, secondary watercourse, or minor river that is tributary to another body of water 2 : any of various usually marshy or sluggish bodies of water

absorption line: a dark line in an absorption spectrum absorption spectrum: an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance is manifested especially as a pattern of dark lines or bands