To be careless, negligent, or awkward, especially with regard to dress and neatness.

Is it marveling or Marvelling?

verb (used without object), mar·veled, mar·vel·ing or (especially British) mar·velled, mar·vel·ling. to be filled with wonder, admiration, or astonishment, as at something surprising or extraordinary: I marvel at your courage.

When was the word Slattern first used?

First recorded in 1630–40; perhaps akin to dial.