sen

In Thailand [Thai. เสัน] and in Cambodia, at least as early as the 17th century – 21st century, a unit of length. In the 20th century and since = 40 meters (about 43.74 yards). link to a chart showing relationships between traditional Thai units of length Abbreviation, sn.

United Nations, 1966.

For Thailand: Weights and Measures Act B.E. 2542 (1999)

sources

1

Dans l'arpentage des Terres, ils se servent d'une autre measure qu'ils appellent Vâ, qui fait quatre de leurs coudées; ou bien de celle qu'ils nomment Séen, qui a vingt de ces Vâs, quatre cent Séens font une de leurs lieuës, qui sont fi longues qu'un de leurs meilleurs pietons n'en peut pas faire plus de cinq par jour.

Regarding the measurement of land, they use another unit which they call a wah, which is made of four of their cubits [sok]; or better that which is called a sen, which is 20 wahs. 400 sens make one of their lieues [yot], which is of such a length that their best walker cannot make more than 5 in a day.

Nicholas Gervaise.
Histoire Naturelle et Politique du Royaume de Siam.
Paris: Claude Barbin, 1688.
Page 154.

2

Vint Voûà sont une corde qu'ils appellent sen.

Twenty wah are a rope which is called a sen.

[Simon] de La Loubère.
Du Royaume de Siam. Tome Second.
Amsterdam: Abraham Wolfgang, 1691.
Page 48.

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