Knacker vs Nacker - What's the difference?

As nouns the difference between knacker and nacker

is that knacker is one who makes knickknacks, toys, etc while nacker is obsolete form of lang=en.

is to tire out, become exhausted.

(en noun)

One who makes knickknacks, toys, etc.

(Mortimer)

One of two or more pieces of bone or wood held loosely between the fingers, and struck together by moving the hand; a clapper.

(Halliwell)

A harness maker.

One who slaughters and (especially) renders worn-out livestock (especially horses) and sells their flesh, bones and hides.

* 1933 , George Orwell, Down and Out in Paris and London , Ch. XXII, Harvest / Harcourt paperback edition, pg. 117-118,

After a few years even the whip loses its virtue, and the pony goes to the knacker

One who dismantles old ships, houses etc., and sells their components.

(Ireland, British, offensive) A member of the Travelling Community; a Gypsy.

(Ireland, offensive, slang) A person of lower social class; a chav, skanger or scobe.

* knacker's yard

(en verb)

To tire out, become exhausted.

Carrying that giant statue up those stairs knackered me out

(Johnson)

(Webster 1913)