Examples from the Web for underwaist
She goes chasing out in her underwaist and petticoat sometimes.
Materials: Pupils may furnish their own materials for an underwaist such as they wear.Handicraft for Girls|Idabelle McGlauflin
Is your uncle rich enough for you to have a governessand you go trailing round in your underwaist and petticoat!
Maria had a beautiful neck showing above the lace of her underwaist.By the Light of the Soul|Mary E. Wilkins Freeman