Baby rompers: this looks soooo much like Daisyhead (Connie S.)'s "Adaptation" soaker or diaper cover (wonderful pattern and FREE in Ravelry). So called because it was adapted from another diaper cover by Ottobre Design (also a FREE pattern in Ravelry). Maybe done here with a slightly higher rise; instead of continuing the waistband ribbing from the back, the front piece lengthens into a small chest-covering panel. Add buttonholes and shoulder straps and voilà, now you have some pretty rompers.

"Baby rompers: FREE in Ravelry). So called because it was adapted from another diaper cover by Ottobre Design (also a FREE pattern in Ravelry).", "Baby rompers on the way to Portugal, USA and Norway Thank …", "Baby rompers: this looks soooo much like Daisyhead (Connie S.)'s \"Adaptation\"…", "Here's a more aggressive way to write covered calls."