"rareness" - Translation from English to Arabic

If we'd come together some other way, I'd feel certain we might have been something like friends, but that can never happen now, despite the rareness of your gifts.
لو كنا قد تقابلنا بطريقة أخرى فأنا واثق من أننا كنا لنصبح صديقين لكن لا يمكن لهذا أن يحدث الآن رغم ندرة هداياك

Because of the chief difficulty in the study of catalepsy and the rareness of the disease you may believe that at the appointed hour
بسبب وجود صعوبة اساسية فى دراسة حالات الصرع وندرة هذا المرض لك ان تصدق اننى فى هذه الساعة

In the verity of extolment, I take him to be a soul of great article and his infusion of dearth and rareness, as to make true diction of him his semblable is his mirror and who else would trace him, his umbrage, nothing more.
ولكن كي أكون صادقـا ، فإنني أعتبره إنسانـا عظيمـا وإن الذين يشبهونه بالصفات ، إذا أردت ان أصفـهم بالتحديد إن هم إلا انعكاس لمرآتـه

JS7 mentioned that in the last three years, thousands of citizens held demonstrations and strikes in many governorates because of rareness of drinking water.
Les auteurs de la communication conjointe no 7 font remarquer qu ' au cours des trois dernières années, des milliers d ' Égyptiens ont manifesté et ont fait grève dans de nombreux gouvernorats pour dénoncer la rareté de l ' eau potable.