Answer:
Root
the part of a plant which attaches it to the ground or to a support, typically underground, conveying water and nourishment to the rest of the plant via numerous branches and fibres.
suffix
append (something), especially as a suffix.
In the word 'coltish', it has no prefix, its root is 'colt', and its suffix is 'ish'. Prefixes come at the beginning, roots contain the basic meaning, and suffixes come at the end of words, modifying their meanings.
The word 'coltish' is an adjective referring to energetic but awkward behavior, much like a young horse, or 'colt'. In this word, the prefix is nonexistent, the root is 'colt', and the suffix is 'ish'. The prefix is a part of a word that comes at the beginning and the root is the main part of the word that contains the basic meaning. The suffix is the part of the word that is placed after the root word, modifying its meaning or function.
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