спекулировать

Perhaps from German spekulieren +‎ -овать (-ovatʹ); see also -и́ровать (-írovatʹ). Several steps omitting from Latin speciō.

• IPA^(key): [spʲɪkʊˈlʲirəvətʲ]

спекули́ровать • (spekulírovatʹ) impf

1. (financial) to speculate, to profiteer, to gamble (in)
2. (figurative) to exploit, to take advantage of
3. to speculate (on)

Until fairly recently, спекули́ровать in Russian was used only in the financial sense: to make opportunistic investments. However, the word has increasingly adopted and been used with the additional English meaning: to make conclusions based on incomplete data.

• спекуля́ция (spekuljácija)

• спекуляти́вный (spekuljatívnyj)
• спекуля́нт (spekuljánt)