Numerical Prefixes

Front

hex(a)

Back

Six

Front

hept(a)

Back

Seven

Front

Octo/Octa

Back

Eight

Front

Non(a)

Back

Nine

Front

Deca/Deci

Back

Ten

Front

nonagon

Back

nine-sided shape

Front

Heptad

Back

A group of seven.

Front

Heptachord

Back

1. A musical scale of seven notes.

Front

Heptastich

Back

1. A strophe, stanza, or poem consisting of seven lines or verses.

Front

heptangular

Back

having seven angles