| | = octōginta - achtzig | octaginta | octaginta | | |
| | = octōginta - achtzig | octuāginta | octuaginta | | |
| | achtzig Asse | octōgessis, octōgessis m | octogessis, octogessis m | | |
| | achtzig Millionen Bürger | octōgiēs centēna mīlia cīvium | octogies centena milia civium | | |
| | achtzig Millionen Bürger | octōginta miliōnēs cīvium | octoginta miliones civium | | |
| | achtzig auf einmal | octōgēnī, octōgēnae, octōgēna | octogeni, octogenae, octogena | | |
| | achtzig enthaltend | octōgēnārius, octōgēnāria, octōgēnārium | octogenarius, octogenaria, octogenarium | | |
| | im Alter von achtzig Jahren | octōgēnārius, octōgēnāria, octōgēnārium | octogenarius, octogenaria, octogenarium | | |
| | je achtzig | octōgēnī, octōgēnae, octōgēna | octogeni, octogenae, octogena | | |
| | | | octogeni, octogenae, octogena | | |