Where does “psycho-biddy” come from?

psycho-biddy (English) comes from English psychobilly, from English rockabilly, from English hillbilly, from English Billy, from English Bill, from Middle English bill, from Old English bil, from Frankish billi — army.

Ancestry of “psycho-biddy”, step by step

psycho-biddy traces back through two separate lines of ancestry.

via English psychobilly

StepLanguageWordMeaning
1EnglishpsychobillyA genre of popular music, blending rockabilly...
2EnglishrockabillyA genre of music originating from the South and...
3EnglishhillbillySomeone who is from the hills; especially from a...
4EnglishBillyThe B-25 twin-engine bomber aircraft used during World War Two, commonly called the "B-25 Mitchell" in honor of U.S. Army General William "Billy" Mitchell
5EnglishBillA nickname for the British constabulary. Often called "The Bill" or "Old Bill"
6Middle Englishbill
7Old Englishbila kind of sword or other bladed weapon,...
8Frankishbilli
9Proto-Germanicbiljąa cutting implement; blade; axe; sword; spike;...
10Proto-Germanicharjazarmy; army leader; commander; warrior
11Proto-Indo-Europeankóryoswar; troops; army; war, troops
12Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
13Proto-Indo-Europeankr̥-to turn, to bend
14Proto-Indo-Europeanker-army

via English Biddy

StepLanguageWordMeaning
1EnglishBiddyof Scottish origin
2EnglishBridgetAn Irish housemaid
3IrishBrighid
4Old IrishBrigitThe goddess of the Sacred Flame of Kildare and the patron goddess of the Druids. Daughter of the Dagdae of the Túatha Dé Danann
5Proto-Celticbrigantīsomething high or elevated; an exalted person
6Proto-Indo-Europeanbʰérǵʰontshigh
7Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain
Every word from Proto-Indo-European ker-