Aphabetic letter pairs in words

KW- kowtow

KX - Knox

KY: killjoy

I’m guessing the question itself was frivolous. The point was that kingdom fit the KM pattern without resorting to a proper noun.

Anyway…

KZ - kibitz

LA = lacuna

LB: lamb

LC: liturgic

LD - litigated

LE - love

LF = loaf

LG = longing

LH - laugh

LI - lei

LJ = lakaj (Danish, “lackey, footman”)

LK = lurk

LL = level

LM = loom

LN: liberation

LO = lasso

LP: Lap