Only the Germans would, or could, have a word with a double-h in the middle of it. It was one of the first words I learnt in post-war Germany: "Durchhalten!" Don't give up! Things will get better! And things did get better! Much better! Not through luck but through hard work.
"Durchhalten!" has been my motto all my life, and I am happy I grew up then instead of now. I am no longer a German and I no longer speak German except when necessary, but when I get into a tight spot, I still tell myself, "Durchhalten!". It helped me then, and it helps me now!