4 KudoZ points awarded for this answer. Comment: "Thank you very much Emmanouil Tyrakis for your answer. My thanks also to anatolia 1 for his answer. This one was hard to vote on; virtually a coin toss. Both answers seem to be correct based on peer review comments and research that I've done on the internet. I suspect that "I skliro'tita" is formal or literary Greek while "I frjkaleo'tita" ("ghoulishness; grousomeness") is more colloquial. Yet, I like to know what colloquial equivalents are too and consider them valuable because they are often hard to come by. Therefore, I gave the edge to Emmanouil but I am really pleased with both answers. Sincerely, Brian Costello"