どう思いますか

The phrase 'dō omoimasu ka' is a combination of several elements. 'Dō' (どう) is an interrogative adverb meaning 'how' or 'in what way.' 'Omoimasu' (思います) is the polite form of the verb 'omou' (思う), which means 'to think,' 'to consider,' or 'to feel.' The 'masu' (ます) ending indicates politeness. 'Ka' (か) is a question particle that turns a statement into a question. Historically, the individual components have roots in Old Japanese. 'Dō' evolved from earlier forms like 'ika ni' (如何に). 'Omou' has been present in various forms throughout the history of the Japanese language, with its core meaning of 'to think' remaining consistent. The use of 'ka' as a question particle is also ancient. Therefore, 'dō omoimasu ka' literally translates to 'How do you think?' or 'In what way do you think?', which naturally conveys the meaning of 'What do you think?' or 'What are your thoughts?' when asking for an opinion. Its structure and meaning have been stable for a significant period in the development of modern Japanese, certainly for more than 200 years.