dimidiate
/dɪˈmɪdɪeɪt/verb
with obj.
1- Heraldry (of a coat of arms or charge) adjoin (another) so that only half of each is visible【纹章】两只（盾徽或纹章）对半相接。
1.1
- as adj. dimidiated(of a charge) having only one half depicted（纹章）只画一半的。
词源
late 16th cent.: from Latin dimidiat- 'halved', from the verb dimidiare, from dimidium 'half'.