sorrowing

adj : sorrowful through loss or deprivation; "bereft of hope"

[syn: {bereaved}, {bereft}, {grief-stricken}, {grieving},

{mourning(a)}, {sorrowing(a)}]

narrowing

{Unification} followed by {unfolding}. The left-hand side of

a {rule} is unified with some term, resulting in a set of

variable bindings. The term is then replaced by the

right-hand side of the rule with values substituted for {bound

variable}s.