noun pl. limbos -·bos

1. in some Christian theologies, the eternal abode or state, neither heaven nor hell, of the souls of infants or others dying in original sin but free of grievous personal sin, or, before the coming of Christ, the temporary abode or state of all holy souls after death
2. any intermediate, indeterminate state
3. a place or condition of confinement, neglect, or oblivion

Etymology: ME < L, abl. of limbus, edge, border (in in limbo, in or on the border) < IE *(s)lemb-, to hand down: see limp