unimportant
irrelevant
Trivial
vacuum
A noisy quarrel about something trivial is a 'squabble'
investigate
daub - to cover or coat with soft, adhesive matter, as plaster or mud
I've is a word that means I have. I'll is a word that means I will.
inevitable
Shatter.
perhaps the word, res. which means: Matter, affair, thing, circumstance
"Matter" is a possibility.
thesis, matter
mass
-ly is the suffix of crossly. It means in the matter of.
The Hindi word 'malish' translates to 'massage' in English. It refers to the act of rubbing and kneading someone's body to reduce stress or pain.
By definition, "dark" (look up what that word means!) matter can not be seen.
I am thinking that it is oral, but I have never seen it as part of a word, or as a root, for that matter.
Solution
Refraction.