Yeah, I did look it up, before I posted the first time, just to be sure I wouldn't sound like a moron by misusing it.
Here on the interwebs there are things called links, words or pictures that you can click on in order to get more information or go to a related website. There were two in my post. (Hint, in this case they're underlined)
Polygamypo⋅lyg⋅a⋅my [puh-lig-uh-mee] Show IPA
–noun
1. the practice or condition of having more than one spouse, esp. wife, at one time. Compare bigamy (def. 1), monogamy (def. 1).
2. Zoology. the habit or system of mating with more than one individual, either simultaneously or successively.
Origin:
1585–95; < Gk polygamía. See poly-, -gamy
and, of course,
Bigamybig⋅a⋅my [big-uh-mee] Show IPA
–noun, plural -mies.
1. Law. the crime of marrying while one has a wife or husband still living, from whom no valid divorce has been effected.
2. Ecclesiastical. any violation of canon law concerning marital status that would disqualify a person from receiving holy orders or from retaining or surpassing an ecclesiastical rank.
Origin:
1200–50; ME bigamie < ML bigamia (LL bigam(us) bigamous + L -ia -y 3 )
For your edification, I've copied the definitions found behind the links into this very post.
Explain to me why we should take you seriously when you reference things from history but don't know the definitions of the words you're using?