Euskara > Arabic, one of the languages from which Euskara absorbed a significant amount of vocabulary
Arabic > Coptic (the language spoken in Egypt before the arrival of Arabic)
coptic > church (google it)
Coptic > Celtic both languages beginning and ending in “c”
Well, well - Dragonbones replied while Iris edited her post. I’ll take DB’s reply:
Celtic > cross
cross - splinter
splinter > rat (the Sensei in the cartoon series Teenage Mutant Ninja Turtles was a mutant rat called Master Splinter)
rat > tail
tail > light
light>twinkle
twinkle > eye
eye>examine
examine > examiner
examiner>reviewer
reviewer>review
Oi! Dragonbones! Can you stop being lazy and think up new words please? Some people, eh? 
Review > watch
watch>horologist
horologist > time
time > epoch 
epoch > horseshit