Crossword clues for the word: TERRAE The word TERRAE has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for TERRAE Showing 1 to 4 of 4 results Clue(s) ___ incognitae (unexplored countries). ___ incognitae (unknown lands) "Lands, in Latin" Of earth: Lat.