Say that word

Bug

W G

 

Wig

next: P & N

 

Paean (a joyous song)

L and N

 

Linen

O E

 

Obdurate

next P L

 

Philosophical

V C

 

Vitriolic

next R Y

 

Retrospectively

K Z

 

kindergartenersrazzamatazz

Don't think there's an existing shorter word in English with K Z; but who knows.

N H

 

Nourish

(Klutz, meaning a clumsy person would have worked for K Z, I can't think of another)

B D

 

Bamboozled

next: I & T

(kilohertz would have also worked for K & Z)

 

Instrumentalist

L C

 

Logic

P Y

 

Peony

Z B

 

Zineb (the only English word I found!)

next: L & N

 

Learn

P W

 

Pillow

R Y

 

Revolutionary

O H

 

@farmerumf that was the word I was thinking!
Oath

W E

 

Worthwhile

H Q