English
ribless
From rib + -less.
Formed from rib + -less
Proto-Indo-European *h₁rebʰ- ‘arch, ceiling, cover’
Proto-Germanic *ribją ‘rib, reef’
Proto-West Germanic *ribi
Old English ribb
Middle English rib
English rib
Today it means
adj Lacking ribs
Language periods are conventional ranges, not dates for this word.
Etymograph / ribless