The suffix is -tain. This suffix means to hold.
Neglectful combines "neglect" with the suffix "-ful".
percervere
To be certain about what you found out or learned
-ic is the suffix. This suffix means in relation of.
The suffix is -tion. This suffix means the process of.
the detective attempted to ascertain the truth through his questioning of the suspect. Should you ascertain that a rumor is true before you believe in it?
I need to ascertain the truth of the situation before making a decision.
Later today I will ascertain whether my order has been shipped yet.
Guess
Can I check the BBB to ascertain if this is a legitimate business?
Neglectful combines "neglect" with the suffix "-ful".
The word "ascertain" appears on page 112 in "And Then There Were None" by Agatha Christie.
The suffix for undo is to not do.
Verb.
percervere
To be certain about what you found out or learned
Yes, dimension does have a suffix. The suffix is -ion.