# Skou languages

The Sko or Skou languages are a small language family spoken by about 7000 people, mainly along the Vanimo coast of Sandaun Province in Papua New Guinea, with a few being inland from this area and at least one just across the border in the Indonesian province of Papua (formerly known as Irian Jaya).

## Typology
### Tone

Skou languages are unusual among Papuan languages for being tonal; all Skou languages possess contrastive tone. Vanimo, for example, has three tones, high, mid, low.
Example minimal sets illustrating tonal contrasts in various Skou languages:
* I’saka: ẽy$^H$ ‘louse’, wey$^L$ ‘butterfly’, wey$^{LH}$ ‘house’, wey$^{HL}$ ‘language’
* Barupu: e$^H$ ‘tooth’, e$^L$ ‘garden’, e$^{HL}$ ‘mosquito’, e$^{HLH}$ ‘write’
* Wutung: ho$^H$ ‘roof thatch made from sago palm fronds’, ho$^L$ ‘star’, ho$^{HL}$ ‘grease’
* Skou: ta$^H$ ‘grass’, ta$^L$ ‘hair’, ta$^{HL}$ ‘arrow’
Lakes Plain languages, spoken in a discontiguous area to the southwest, are also tonal. Because of the apparent phonological similarities and sharing of stable basic words such as ‘louse’, Foley speculates the potential likelihood of a distant relationship shared between the Skou and Lakes Plain families, but no formal proposals linking the two families have been made due to insufficient evidence. Additionally according to Foley, based on some lexical and phonological similarities, the Keuw language (currently classified as a language isolate) may also possibly share a deep relationship with the Lakes Plain languages. Like the Lakes Plain languages, Keuw also possesses constrative tone.
Lepki, Kaure, and Kembra, spoken in mountainous inland regions of the Indonesia-PNG border to the southwest of the Skou-speaking area, are also tonal.

### Morphology

Skou languages can be isolating or polysynthetic.
* Isolating structure: Dumo, an Inner Skou language
* Polysynthetic structure: Barupu, a Piore River language

## Classification

Skou languages were first linked by G. Frederici in 1912. In 1941, K.H. Thomas expanded the family to its current extent.
The Sko family is not accepted by Søren Wichmann (2013), who splits it into two separate groups.
Donohue (2007) and Donohue and Crowther (2005) list Nouri as a mixed language having features of both the Piore River and Serra Hills subgroups.

### Sko (Laycock 1975)

Laycock posited two branches, Vanimo and Krisa:
* Sko
** Vanimo branch
*** Skou
*** Sangke (Nyao)
*** Wutung
*** Vanimo (Dumo)
** Krisa branch
*** I’saka (Krisa)
*** Rawo
*** Puari
*** Barupu (Warapu)

### Skou (Ross 2005)

However, Krisa is poorly supported and Malcolm Ross abandoned it.
* Skou
** I’saka (Krisa)
** Barupu (Warapu)
** Puari
** Rawo
** Womo
** Vanimo branch:
*** Skou (Tumawo)
*** Leitre
*** Sangke (Nyao)
*** Wutung
*** Vanimo (Dumo)
*** Dusur

### Macro-Skou (Donohue 2002)

Mark Donohue proposed a subclassification based on areal diffusion he called Macro-Skou.
* Macro-Skou
** Iʼsaka
** Skou–Serra–Piore linkage
*** Piore River: Nori (strongly influenced by Womo), Barupu
*** Serra Hills
**** Puare
**** Rawo – Main Serra: Rawo, Womo
*** Skou (Vanimo) family
**** Skou
**** Eastern Skou / Vanimo
***** Leitre
***** West Coast
****** Border: Nyao, Wutung
****** Vanimo proper: Dumo, Dusur
Donohue (2004) notes that is unclear if extinct Nouri is in the Piore River or Serra Hills branch.

### Sko (Foley 2018)

Foley (2018) provides the following classification.
* Sko
** I'saka
** Piore River
*** Barupu / Warupu (Bauni)
*** Ramo (Uni)
*** Sumo (Bouni)
** Serra Hills
*** Puare
**** Womo
**** Waro
** Inner Sko
*** Skou
**** Leitre
***** Dumo
***** Dusur
***** Nyao / Sangke
***** Wutung
Foley's Inner Sko corresponds to Donohue's Western Skou.

### Miller (2017)

The Piore River branch was renamed Lagoon in Miller (2017). The older names of the Piore River languages were from village names; Miller has since renamed them as Bauni, Uni, Bouni, and Bobe, though it is debatable whether they are all distinct languages.
* Lagoon (also Piore River)
** Bauni (Poo and Barapu/Warapu villages)
** Uni (Ramo village)
** Bouni (Sumo village)
** Bobe (Nouri village)

### Usher (2020)

Usher groups the languages as follows, with each node being a reconstructable clade, and giving the family a geographic label rather than naming it after a single language. The Eastern languages are typologically quite distinct from the Western languages and I'saka.
* Vanimo Coast
** I'saka
** West
*** Skou
*** Leitre
*** Dumo-Dusur (Vanimo)
*** Sangke–Wutung
**** Sangke (Nyao)
**** Wutung
** East
*** Piore River
**** Barupu (Bauni–Uri–Bouni)
**** Nouri
*** Serra Hills
**** Puare
**** Rawo
**** Pini
***** Womo
***** Sumararu

## Pronouns

The pronouns Ross reconstructs for proto-Skou are,
    I*nawe*ne thou*meyou ? he*kathey (M)*ke she*bothey (F)*de
The Skou languages also have a dual, with a distinction between inclusive and exclusive we, but the forms are not reconstructable for the proto-language.
Pronouns in individual Skou languages:
    pronounI'sakaBarupuWutungSkou 1SG nananěnániɛnì 2SG mamaměmámɛmè 3MSG kiayáʔeke 3FSG umubócepe 1PL numuměmínɛtune 2PL yumumŏpúɛtue 3PL i.e.yéitɛtute

## Cognates

Sko family cognates (I'saka, Barupu, Wutung, Skou) listed by Foley (2018):
    Sko family cognates glossI'sakaBarupuWutungSkou ‘hand’douenonoʔɛ̃no ‘tooth’kũeʔũkə̃ ‘breast’nitonono ‘woman’bubomwũawũapɛɨma ‘bird’yũrutĩtã ‘dog’nakinaʔinake ‘water’wipipa ‘old’tunitɔrarõtoto ‘eat’aou(u)aa
A cognate set for 'louse' in Sko languages (reconstructing roughly to *nipi in Proto-Sko) as compiled by Dryer (2022):
    Language (group)louse Serra Hillsni, nip, nipi Warapumi Western Skopi, fi, pĩ Isakaẽĩ

## Vocabulary comparison

The following basic vocabulary words are from Voorhoeve (1971, 1975), as cited in the Trans-New Guinea database. More recent data from Marmion (2010) has been added for Wutung and from Donohue (2002) (as cited in the ASJP Database) for Skou.
The words cited constitute translation equivalents, whether they are cognate (e.g. lúrtô, rəto for “eye”) or not (e.g. hlúqbùr, kəsu for “head”).
    glossWutung (Marmion 2010)Wutung (Voorhoeve 1975)Skou (Donohue 2002)Skou (Voorhoeve 1971, 1975) head hlúqbùrkəsu.rebiröbe; rö́e hair tàngtatata ear qúrlùrlelö eye lúrtôrətolu; lutolutɔ̀ nose haha tooth qúngkəke*kö leg knaŋkutãe louse hehefifi dog náqînakinakEnakɛ́ pig càtyamupálɛ bird tîngta*tåå; tãŋã egg kuekuekutã kò blood hnjiehihihi bone qêyeeee skin mà; nuanaronö re; nö rɔ̀ breast nono*nɔ tree riri; riteri man panyuatebakE baba; keba; kébanè; teba woman wungawunga3mEpemɛ̀ sun hlànghrãra*rãã́ moon kEke water câtyapapa fire hiehaerara stone wólòngkoŋũwu*hũ; wũ eat sàqèngpùà (1SG)a*kã; pã; tã one ófàofaali*alì two hnyûmòhimehi*tu*hĩ́to