On Sun, 7 Apr 2013 13:50:13 +0200, Athel Cornish-Bowden
<
acor...@imm.cnrs.fr> wrote:
>On 2013-04-07 10:32:01 +0000, Outspan said:
>
>> Hello,
>>
>> I'm not a native speaker and I'm looking for a concise, elegant way of
>> expressing the concept of "related to a five-year period" and "related
>> to a twenty-year pariod" (such as in "five-year goals" and "twenty-year
>> goals").
>>
>> I know that "lustrum" refers to a five-year period, but I don't know
>> whether the term is in common usage.
>
>No. It isn't, and it won't be understood by most people. In the days
>when university budgets in the UK were for 5 years the word used was
>"quinquennium", with adjective "quinquennial".
>
>I can't think of any equivalent words for 20 years -- probably because
>nothing much is defined for 20 years.
I returned to first principles, guessed, and find OED has a single
example of the rare but deducible "vigintennial":
<1921 Glasgow Herald 29 Jan. 13/3 Their [sc. the planets']
vigintennial conjunction is due a few months hence.>
I'd only use it for fun. Plain English is usually best.
>
>> If so, one option could be "lustral", and likewise "bidecennial". Are
>> there better alternatives? Would you say "five-year" and "twenty-year"
>> are preferable?
>>
>> (Weekly goals, monthly goals, yearly goals, ?? goals, ?? goals)
>>
>> Thanks
--
Mike.