Learn how to say Speculated correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word speculate:
1form a theory or conjecture about a subject without firm evidence:
my colleagues speculate about my private life
observers speculated that the authorities wished to improve their image
2invest in stocks, property, or other ventures in the hope of gain but with the risk of loss:
he didn’t look as though he had the money to speculate in shares
late 16th century: from Latin speculat- ‘observed from a vantage point’, from the verb speculari, from specula ‘watchtower’, from specere ‘to look’