suitor
/ˈsjuːtə(r)/noun
1- a man who pursues a relationship with a particular woman, with a view to marriage求婚者。
1.1
- a prospective buyer of a business or corporation（企业或公司的）可能买主。
词源
late Middle English （in the sense 'member of a retinue', also in sense 2）： from Anglo-Norman French seutor, from Latin secutor, from sequi 'follow'.