bigamy
big.a.my \'big-*-me-\ n [ME bigamie, fr. ML bigamia, fr. L bi- + LL -gamia -gam]y, fr. Gk, fr. gamos marriage; akin to L gener son-in-law : the act of entering into a ceremonial marriage with one person while sti ll legally married to another that when willfully done constitutes a statutory offense