Where does “antisludge” come from?

antisludge (English) comes from English sludge, from Middle English slugge, from Old English *sliċ, from Proto-Germanic *sliki, from Proto-Germanic *slikiz, from Proto-Indo-European sleyǵ- — to glide, smooth, spread; to smear; to creep; to...

Ancestry of “antisludge”, step by step

antisludge traces back through two separate lines of ancestry.

via English sludge

Step	Language	Word	Meaning
1	English	sludge	Solids separated from suspension in a liquid; A...
2	Middle English	slugge	lazy person
3	Old English	*sliċ	—
4	Proto-Germanic	*sliki	—
5	Proto-Germanic	*slikiz	—
6	Proto-Indo-European	sleyǵ-	to glide, smooth, spread; to smear; to creep; to...

via English anti

Step	Language	Word	Meaning
1	English	anti	Opposed to something; That has a torsion angle...
2	English	anti-	Against, hostile to; Contrasting with the norm;...
3	Ancient Greek	ἀντι-	anti-, against; like, reminiscent of
4	Ancient Greek	ᾰ̓ντῐ́	opposite

Every word from Proto-Indo-European sleyǵ- →Every word from Proto-Germanic *slikiz →Every word from Proto-Germanic *sliki →