What is 7 in Latin?

Answer 1

7 (seven) = 'Hepta'

As in Heptagon , a 7 sided 2-dimensional figure.

or Heptahedron , a 7 faced solid object.

Here is a table of latin names for numbers.

1 (one ) = Mono

2 ( two) = dup/di/ti/bi

3 three = Tri

4 four - tetra

5 five -= penta

6 six = hexa

7 seven = hepta

8 eight = octa

9 nine - nona

10 ten = deca

100 ( hundred ) = centum ( as in cents/century)

1000 ( thousand)= millum ( as in millenium).

Answer 2

The root word is sept. (September was the 7th month until August and July were added in front of it.)