nasal pres / root aor

[Vidhyanath Rao]

Jens Elmegaard Rasmussen <jer at cphling.dk> wrote:
>[...]Again, Strunk has pointed
> out a possible relic pair in Hittite as well: hunik-zi/hunink-anzi 'wound'
> vs. huek-zi 'stab, kill' which look like n-prs. + root aor. of the same
> verb (note the 'unfinished business' implied by the old present stem as
> opposed to the terminal aorist).

This is fine if huekzi meant only `kill'. But how does `unfinished'
stabbing lead to `wound'?