What are the different aspects of words?

In English there are PARTS OF SPEECH: nouns, adjective,
adverbs, verbs, articles, etc...

There are ANGLO-SAXON
WORDS and GREEK & LATIN-ROOT WORDS: Anglo-Saxon words comprise 70% of our
vocabulary:"sing," "sang," "sung."  Greek and Latin-root words comprise a large portion
of the rest.  They are the language of academia, medicine, and law ("hemophiliac,"
"chloroform," etc...)

There are HIGH FREQUENCY and LOW
FREQUENCY words.  High frequency are words we use daily ("I," "the," "you," "is").  Low
frequency words are words we only use occasionally ("trident," "kumquat,"
"interdenominationalism").