suicidio
/swiˈθidjo/ · B1 · noun · m
suicide
Latin sui (of oneself) + -cidio (killing), the same roots as English suicide
The ending -cidio means killing, as in homicidio and genocidio. Spanish spells the word almost like English, with -io for -e. In Spain the c sounds like th (swi-THI-dyo). In Latin America it sounds like s.