Going from Amharic to Sicilian (Sicilianu) has a composite linguistic distance of 81% (heuristic estimate). Below is the dimension-by-dimension breakdown.
Shared vocabulary, cognates, and loanwords.
Morphology, syntax, word order, cases.
Shared sounds and phoneme inventory.
Ge'ez → Latin
Afro-Asiatic ↔ Indo-European
The 5 languages with the lowest linguistic distance from Amharic:
A quick 3-question check between Amharic and Sicilian. No signup.