Legis
The root is leg- and refers to law. It comes from Latin lex, legis. Compare with the words legislation, legislature, etc.
Legislate, legislation Legalistic, legalism illegal paralegal legalize and several others
Fugit/ or Fugus is from Latin , and means 'to flee/ Run away'. E.g. Fugative is a person who flees from their home country , because of some fear. 'Tempus Fugit' ; Time Flies.
There is no root word of river. It itself is a root word.
the root word is'confirminglyishness'
Root word is usual.
the root word is decor and that is the root word of decorate
The root word is gift.
end is the root word
Tri is the root word of intricate. The root word means three.
The root word of impersonal is person.
*legislation the word "legislation" is already plural.