(from the Latin "Viaticum" (vi-at-i-kum), an allowance for traveling expenses or provisions for a journey.) Initially the term “viatical” applied to the sale of life insurance by a terminally ill person. In some contexts, that narrow use -- i.e., terminal illness -- continues to have meaning (as in the difference between viatical settlement vs. senior settlement) . In other instances, "viatical" can be applied to the broader lifetime settlement process -- for example, the provisions of the NAIC's Viatical Settlement Model Act apply to both viatical and senior settlements. See Viatical Settlement, Senior Settlement