Fabrizio del Wrongo writes:

Each one singly is called man; 
‘t is twain if they are two; 
three are a thorp; 
four are a group; 
a band is five men;
if there are six, it is a squad; 
seven complete a crew; 
eight men make a panel; 
nine are ‘good fellows;’ 
ten are a gang; 
eleven form an embassy; 
it is a dozen if twelve go together; 
thirteen are a crowd; 
fourteen are an expedition; 
it is a gathering, when fifteen meet; 
sixteen make a garrison; 
seventeen are a congregation;
to him who meets eighteen, they seem enemies enough. 
He who has nineteen men has a company; 
twenty men are a posse; 
thirty are a squadron; 
forty, a community; 
fifty are a shire; 
sixty are an assembly;
seventy are a line;
eighty are a people; 
one hundred is a host.

— Snorri Sturluson

Related

• Blowhard, Esq. smells what the Law Rock is cooking.