Part and Whole
Opposite meaning words
Part noun - One of the pieces from which something is designed to be assembled.
Usage example: the model car came in several small parts that had to be put together
Whole adverb - To a complete degree or to the full or entire extent (`whole' is often used informally for `wholly').
Usage example: a whole new idea
How words are described
Google Ngram Viewer shows how "part" and "whole" have occurred on timeline