A-W of words containing letters "er" anywhere in the word (Part 1)

Mesmerized - US version on this forum.

Nervous

Occupiers

Pervasive

Quaffer

Rasher

Serum

Terrarium

Universality

Vertical

Whereabouts

Another

Brethren

Clover

Divergence

Emergence

Flabbergasted

Gander

Heralding

Intervention