Teenagers in Other Languages

The word “adolescent” comes from a Latin word meaning “to grow toward”. But “teenager” relies on a quirk of the English language—that the numbers 11 and 12 have their own unique words, while 13 through 19 are compound words that combine a single-digit number and a suffix meaning “ten” (four-teen, six-teen, and so on). How do other languages refer to adolescents and teenagers—and does your own first language differentiate between these two terms? What are their different connotations? Do cultures with languages that use a -ten suffix for the numbers 11 and 12 define the “teenage” years differently? For instance, in Spanish, the -ten suffix only comes into play at 16—diez (10) y seis (6); do children only become teenagers at 16 in Spanish-speaking countries?