opine

• vt.考える；思う
• vi.考える；思う；意見を述べる

ラテン語のopinariから、意見を述べる、意見を表明する、語源的にはopinionと同じ。

opine (v.)

"express an opinion," mid-15c., from Middle French opiner (15c.) and directly from Latin opinari "have an opinion, be of opinion, suppose, conjecture, think, judge," perhaps related to optare "to desire, choose" (see option). Related: Opined; opining.

1. I opine that it will rain before night.

暗くなる前に雨が降ると思います。