A genarian is a person who is in their 90s, typically aged 90 to 99 years old. The term is often used in discussions about Demographics and aging populations.
A person in their 50s is considered a quinquagenarian.
12-letter wordsnonagenarian, octogenarian, sexagenarian14-letter wordsseptuagenarian
A 5-year-old is considered a toddler or preschooler. They are in the early stages of childhood development and are typically full of curiosity and energy.
since Latin prefixes are used i would assume Vigitagenarian perhaps spelling isn't correct & for 30 trigintagenarian i saw this on wikipedia this is more likely to be correct: Ages can also be divided by decade: Term Age (years, inclusive) Denarian 10 to 19 Vicenarian 20 to 29 Tricenarian 30 to 39 Quadragenarian 40 to 49 Quinquagenarian 50 to 59 Sexagenarian 60 to 69 Septuagenarian 70 to 79 Octogenarian 80 to 89 Nonagenarian 90 to 99 Centenarian 100 to 109 Supercentenarian 110 and older