septenary

adjective

1. of or relating to the number seven or forming a group of seven.
2. septennial.

noun, plural sep·te·nar·ies.

3. a group or set of seven.
4. a period of seven years.
5. the number seven.
6. Prosody. a line of seven feet.

adjective

1. of or relating to the number seven
2. forming a group of seven
3. another word for septennial

noun plural -naries

4. the number seven
5. a group of seven things
6. a period of seven years
7. prosody a line of seven metrical feet