Where does “muck-up” come from?

muck-up (English) comes from English muck, from Scottish Gaelic muc, from Old Irish mucc, from Persian موش, from Middle Persian mwšk', from Sanskrit मुष्क, from Sanskrit मूष्, from Proto-Indo-European múh₂s — mouse.

muck-up (English): The act of botching something; an incompetent...

Definitions

The act of botching something; an incompetent...

Ancestry of “muck-up”, step by step

muck-up traces back through two separate lines of ancestry.

via English muck

Step	Language	Word	Meaning
1	English	muck	mud, sludge; Soft manure; Anything filthy or...
2	Scottish Gaelic	muc	pig; sow
3	Old Irish	mucc	pig, sow
4	Persian	موش	mouse; rat
5	Middle Persian	mwšk'	musk
6	Sanskrit	मुष्क	testicle, scrotum
7	Sanskrit	मूष्	mouse; "stealer", "thief"
8	Proto-Indo-European	múh₂s	mouse

via English up

Step	Language	Word	Meaning
1	English	up	Away from the surface of the Earth or other...
2	Middle English	up	to a vertical axis
3	Old English	upp	up; upstairs
4	Proto-West Germanic	*upp	—

Every word from Proto-Indo-European múh₂s →Every word from Sanskrit मूष् →Every word from Sanskrit मुष्क →