A-W of words containing letters "er" anywhere in the word (Part 2)

Clobbered

Dervish

Ergonomics

Fender

Grovers

Heresy

Infertile

Juggler

Killers

Lighter

Mastering

Neuroticism

Operationally

Physiotherapist

Quarterback

Reader

Stopper

Twerp

https://www.collinsdictionary.com/dictionary/english/twerp

twerpin British English

or twirp (twɜːp IPA Pronunciation Guide)

noun

informal

a silly or contemptible person
We all know somebody like that, my bestest buddy is a ‘twerp’ and he would be the first to say so…

Nice one !

Underling

Verger