septennial

sep·ten·ni·al  (sp-tn-l)

adj.

1. Occurring every seven years.

2. Consisting of or continuing for seven years.

n.

An event that occurs every seven years.

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[From Late Latin septennium, period of seven years, from Latin septennis, of seven years : septem, seven; see sept in Indo-European roots + annus, year; see at- in Indo-European roots.]

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sep·tenni·al·ly adv.

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septennial [sɛpˈtɛnɪəl]

adj

1. occurring every seven years

2. relating to or lasting seven years

[from Latin septennis, from septem seven + annus a year]

septennially  adv

Translations

septennial

adj → siebenjährig; (= every seven years) → alle sieben Jahre stattfindend, siebenjährlich