Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Italian speculare
Italian specchio (link)
Italian specchiare (link)
Italian specolare (alter)
Italian (alter)
Italian rare (alter)
Italian speculativo (link)
Italian speculatore (link)
Italian speculazione (link)
Latin speculāris (borrowed)
Latin speculārī (borrowed)
Latin speculor (mention)

Ido spekular (derived)
Italian specularmente (affix)
Italian specularità (suffix)
Italian speculabile (suffix)