baktunn.

Brit.

/ˈbaktuːn/, U.S.

/ˈbɑkˌtun/

Forms: 1900s– b'ak'tun, 1900s– bak'tun, 1900s– baktun.

Origin: A borrowing from Maya. Etymon: Maya bak'tun.

Etymology: < ancient Maya bak'tun < bak'- , apparently a multiplier (only attested in calendars) + tun period of 360 days (see definition). Compare earlier katun n.

In the ancient Mayan calendar: a period of 144,000 days, equivalent to 20 cycles of the katun (see katun n.).In the Mayan calendrical system for measuring absolute time, known as the Mesoamerican Long Count Calendar, the day forms the basic unit called kin. Twenty kins make a uinal (20 days), 18 uinals make one tun (360 days), 20 tuns make a katun (7,200 days), and 20 katuns make a baktun (144, 000 days).

ΚΠ

1922 H. J. Spinden Anc. Civilizations Mexico & Central Amer. (ed. 2) ii. 106 The number in five positions given below is transcribed as 9.12.16.7.8... We read this date: 9 baktuns (or cycles), 12 katuns, 16 tuns, 7 uinals, and 8 kins.

2012 Observer 16 Dec. 29/1 According to the Maya, the 13th baktun reaches completion on Friday, in what they called the Long Count of time.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021).

单词	baktun
释义	baktunn. Brit. /ˈbaktuːn/, U.S. /ˈbɑkˌtun/ Forms: 1900s– b'ak'tun, 1900s– bak'tun, 1900s– baktun. Origin: A borrowing from Maya. Etymon: Maya bak'tun. Etymology: < ancient Maya bak'tun < bak'- , apparently a multiplier (only attested in calendars) + tun period of 360 days (see definition). Compare earlier katun n. In the ancient Mayan calendar: a period of 144,000 days, equivalent to 20 cycles of the katun (see katun n.).In the Mayan calendrical system for measuring absolute time, known as the Mesoamerican Long Count Calendar, the day forms the basic unit called kin. Twenty kins make a uinal (20 days), 18 uinals make one tun (360 days), 20 tuns make a katun (7,200 days), and 20 katuns make a baktun (144, 000 days). ΚΠ 1922 H. J. Spinden Anc. Civilizations Mexico & Central Amer. (ed. 2) ii. 106 The number in five positions given below is transcribed as 9.12.16.7.8... We read this date: 9 baktuns (or cycles), 12 katuns, 16 tuns, 7 uinals, and 8 kins. 2012 Observer 16 Dec. 29/1 According to the Maya, the 13th baktun reaches completion on Friday, in what they called the Long Count of time. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021). < n.1922
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