The story
- Old Norse · derived frombarnburðr“childbearing, childbirth”
- Middle English · inherited fromchildbyrth
- English todaychildbirth
From Middle English childbyrth [and other forms], perhaps a partial calque of Old Norse barnburðr (“childbearing, childbirth”, literally “bairn birth”); equivalent to child + birth. Compare Swedish barnsbörd (“childbirth”), Icelandic barnsburður (“childbirth”).
Etymology from Wiktionary, CC BY-SA 4.0.