euthanize

the word is a modern formation, constructed in the 19th century from classical greek components to describe a specific medical concept. the prefix 'eu-' signifies a 'good' or 'easy' manner, while the root '-than-' is derived from 'thanatos', the greek personification of death. the verb-forming suffix '-ize' activates the compound, meaning 'to cause to be'. thus, the literal construction 'to cause a good death' directly and logically informs the modern, specialized meaning of inducing a painless death to end suffering, a practice whose ethical dimensions are often debated.

Structure: eu (good) + than (death) + ize (verb suffix) eu (greek origin, meaning 'good, well'); than (from greek 'thanatos', meaning 'death'); ize (greek-origin suffix via latin and french, forming verbs meaning 'to make, to cause to be').