korbi -kor-koi- gismu

x1 is an edge/margin/border/curb/boundary of x2 next-to/bordering-on x3.

See also cmavo list koi, greku, mlana, jimte, ctebi, bartu.


In definition:

koi
korbi modal, 1st place (bordered by) bounded by ...
sekoi
korbi modal, 2nd place (bounding) as boundary of ...
tekoi
korbi modal, 3rd place (bounding) bordering ...

In notes:

bartu
x1 is on the outside of x2; x1 is exterior to x2.
ctebi
x1 is a/the lip [body-part]/rim of orifice x2 of body x3; (adjective:) x1 is labial.
greku
x1 is a frame/structure/skeleton/outline supporting/load-bearing/determining the form of x2.
jimte
x1 is a limit/extreme/bound/border/[confinement] of x2 in property/domain x3.
mlana
x1 is to the side of/lateral to x2 and facing x3 from point of view/in-frame-of-reference x4.
blotcana
t1 is a seaport/ferry terminal in transport system t2 for boats/ships/vessels of type b2 propelled by b3.
koidru
k1 is an overhanging portion of roof d1=k2, which is a roof of d2.
plinyxabykoi
k1 is the equator of planet x2=p1 (default Earth) revolving around p2
ri'erkoi
k1 is a bank of river k3=r1.
selbancu
x2=b1 exceeds/is beyond limit/boundary x1=b2 from x3=b3 in property/amount x4=b4 (ka/ni).
selca'o
x2=c1 is a window/portal/opening in wall/building/structure x1=c2.
vrokoi
k1=v1 is the threshold defining access through the boundary between k2=v2 and k3=v3.