quinquagenarian

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quin·qua·ge·nar·i·an

 (kwĭng′kwə-jə-nâr′ē-ən)
n.
A person 50 years old, or in his or her fifties.
adj.
Of or characteristic of a person in his or her fifties.

[From Latin quīnquāgēnārius, containing fifty, from quīnquāgēnī, fifty each, from quīnquāgintā, fifty; see penkwe in Indo-European roots.]

quinquagenarian

(ˌkwɪŋkwədʒɪˈnɛərɪən)
n
a person between 50 and 59 years old
adj
1. being between 50 and 59 years old
2. of or relating to a quinquagenarian
[C16: from Latin quinquāgēnārius containing fifty, from quinquāgēnī fifty each]

quin•qua•ge•nar•i•an

(ˌkwɪŋ kwə dʒəˈnɛər i ən, ˌkwɪn-)

n.
a person who is 50 years old or between 50 and 60.
[1560–70; < Latin quīnquāgēnāri(us) containing fifty quīnquāgēn(ī) fifty each]
Translations