Polygamy is a general term for the practice of having many partners. It’s a common misconception that polygamy means one man married to multiple wives. The real term for that arrangement is polygyny, which is the practice or condition of having more than one wife at one time.

Before reading further, it is important to note that ‘-gyny’ originates from Greek gyne, which means “woman” while -andry originates from the Greek word andro which is for “man”, hence the endings in all these words.
Generally, the prefix -poly means more than one and denotes “much” and “many”. It can also be found in words like polyglot (someone who can speak or understand many languages), polymath (a person who knows a great deal about many different subjects), and polygamy (the marriage practice of having ‘many’ mates) which is our highlight for NRTC English today.

https://newsroundtheclock.com/nrtc-english-polygamy-and-its-different-forms-like-polyamory-polygyny-and-polyandry/