Use the last letter

[TheRiddler]

Sever.

 

[Barbas]

Rankling.

 

[Headsprouter]

Growth.

 

[Barbas]

Habitually.

 

[TheRiddler]

Ylang-ylang.

 

[Barbas]

Gooseberries.

 

[me.vicky]

Succulent.

 

[Barbas]

Rabbits.

 

[TheRiddler]

Stibnite.

 

[Barbas]

Ether.

 

[Rabbitboy]

Rest

 

[Barbas]

Trees.

 

[TheRiddler]

Seersucker.

 

[Barbas]

Rhesus.

 

[TheRiddler]

Sussex.

 

[Barbas]

Xerox.

 

[Rabbitboy]

Xandar

 

[Barbas]

Reptilian.

 

[RedDeadFred]

Navy.

 

[Barbas]

Yardstick.