mutterseelenallein

Etymology
18th century, from earlier, which is either “as alone as a child in the womb” or more likely “as alone as a child bereft of its mother”. The contemporary form is equivalent to 🇰🇲, wherein the word is an emotive enhancement of  (like the usual  for ).

Discredited theories derived it from or from  +. The latter was supposedly introduced by Huguenot immigrants although the first Huguenots arrived in Germany around 1600 and the above is attested earlier. From the German are 🇨🇬 and 🇨🇬.

Adjective

 * 1) utterly alone, all alone