The root word is duct (a tube in a building, usually for ventilation, water pipes and electrical cables, etc).
The word reduction contains the same root as the word produce.
reduce
Yes, the word 'deduction' is a noun; a singular, common, abstract noun; a word for an amount or number taken from a total; a word for something that you know from the information or evidence that you have; a word for a thing.
Fugitive has no root word it is the root word.
There is no root word of river. It itself is a root word.
reduction, deduction, diminution
the root word is'confirminglyishness'
The root word of "unusual" is "usual."
the root word is decor and that is the root word of decorate
The root word is gift.
The root word of "endless" is "end."
Tri is the root word of intricate. The root word means three.