Digital Language Vitality | Yessan-Mayo

Yessan-Mayo (yss)



English name Yessan-Mayo
Native name
SIL code yss
Alternative names maio-yesan, mayo, mayo-yesan, mayo-yessan, warasai, yamano, yamano yessan-mayo, yasyin, yau, yaw, yawu, yawu yessan-mayo, yesan, yessan, yessanmayo, ယော
Speakers L1: 1,990 (ethnologue),
L1: 9,000 (East and Southeast Asia” (349-424) . David Bradley (2007) , C. Moseley · London & N),
L1: 9,000 (aggregate),
L1: 1,990 (Ethnologue: Languages of the World, 18th Edition” . Lewis, M. Paul, Gary F. Simons, and ),
L1: 599 (Sepik languages: checklist and preliminary classification” . Laycock, Donald C. (1973) ),
L1: 1,023 (aggregate),
L1: 900 (Grammar of Yessan-Mayo” . Foreman, Velma M. (1974) Summer Institute of Linguistics)
Country Papua New Guinea
Region Melanesia
Champion N/A
ISO scope I
ISO type L
ISO active yes
Integrated code yss_____________A
Last updated Feb. 1, 2017, 3:36 p.m.


EGIDS (Ethnologue) 5
In yes
Vitality (Kornai, 2013) dead

Language packs

Windows10 input method no
Mac input no
Ubuntu input no
Windows language pack no
Mac language pack no
Ubuntu language pack no
Firefox language pack no
Firefox dictionary no
Office language pack no
Office interface pack no


Has Wikipedia no
Has Wikipedia Incubator no

NLP tools

Hunspell status
Hunspell coverage None
TreeTagger no

Open Language Archives Community

Primary texts online None
Primary texts all None
Lexical resources online 6
Lexical resources all 6
Language descriptions online 9
Language descriptions all 15
Language in online resource None
Language in any resource None
Online resource about the language 8
Any resource about the language 28


Source Crubadan
Number of documents 290
Number of words 219,371
Number of characters None
Has FLOSS spell checkers no
In Watchtower no
Has UDHR translation no

Indigenous Tweets project

Number of blogs None
Number of posts None
Number of words None
Number of users None
Number of tweets None

Swadesh lists

Has Swadesh 110 yes
Has Swadesh 207 no

Other databases

Panlex translations 27,568
In WALS no
In Omniglot no
On yes
Uriel features 192
In Leipzig Corpora no
In SIREN project no