What is the wife of a henpecked husband called?

henpecked [hen-pekt]
adjective
1. browbeaten, bullied, or intimidated by one's wife, girlfriend, etc.:
a henpecked husband who never dared to contradict his wife.

What is the wife of a henpecked husband called? (word or phrase) (in regards to her browbeating/bullying, her husband)

It might not be henpecker since henpecked seems to have the etymology of "pecked by the hen".

Sample sentence:

That woman is a henpecker.

Solution 1:

You might go with a word that was well-understood in the Shakespearean era:

shrew
2: an ill-tempered scolding woman
_{definition from m-w.com}

Thus the henpecked husband could say "I didn't realize it at the time but I soon discovered that I'd married a real shrew."

Solution 2:

You can have your pick, I like harridan. But look at the synonym list, it's hysterical.

har·ri·dan
[ˈherəd(ə)n]
NOUN
a strict, bossy, or belligerent old woman.
"a bullying old harridan"

synonyms: shrew · virago · harpy · termagant · vixen · nag · hag · crone · dragon · ogress · fishwife · hellcat · she-devil · fury · gorgon · martinet · tartar · spitfire · old bag · old bat

— Oxford Dictionaries (Definition and synonyms) via Bing.

Solution 3:

The verb henpeck means:

[Merriam-Webster]

: to subject (one's spouse or partner) to persistent nagging and domination

Using the common noun counterpart, you would simply say, "That woman is a nag":

[Merriam-Webster]

noun
: one who nags habitually

Solution 4:

An unambiguous colloquial phrase for this is She Who Must Be Obeyed. It even has a Wikipedia page.

The meaning of the phrase is pretty clear just from the literal words put together, but here's a source:

informal, depreciative

A strong-willed or domineering woman, especially a wife or female partner.

_{-- Oxford Dictionaries}

It may also be shortened to simply SWMBO.

The origin of this phrase is H. Rider Haggard's novel She, but there the character called "She Who Must Be Obeyed" is a fearsome and immortal queen-goddess. Its usage in popular culture to mean a henpecking wife may stem from the British TV series Rumpole of the Bailey, and may be mostly a Brisith English phenomenon. (Citation needed for both those last speculations, though.)