Jakob Jakobsen, An Etymological Dictionary of the Norn Language in Shetland…
“ In a special sense: to keep (a child) in check, to k. a bairn; de bairn is never krobbed [krȯbəd] , the child is never ruled, always gets its own way. The word is also found in Eng. dial., but in Shetlandic it may be of Norn origin (*krubba) ; see below krobbet, adj. krobbek [krȯbək] , sb., a crib, box, esp. a) lamb’s crib, a box for holding fodder for lambs (Conn.) ; b) a wooden box in which bait (esp. limpets) is gathered and kept (mostly square, with gable-shaped ends between which is fastened a string, serving as a handle) , bait-k., limpet-k. ”
