asagúsi

Etymology
From +  (compare ), from. The prefix is often replaced with.

The derivation is very complicated. The following account of how the -si suffix appeared in Old Irish is implied by KPV:
 * The expected present forms would include throughout the singular. This made all three persons in the singular identical in form (a situation unusual in Old Irish verbs), leading to multiple strategies arising to distinguish the third-person singular from the other persons. This included adding notae augentes particles to the end of the conjugated verb (like ), and forming a new weak A II denominative verb from a hypothetical  noun relative . The two strategies would hybridize to create the weak present as(a)·gúsi.
 * The future forms are analogical after.

Verb

 * 1) to desire, wish
 * 2) to choose, select
 * 3) to prefer