Category:Morphology
Feature:Reduplication WALS
Name:Productive full and partial reduplication
Languages (236):
Conlangs (174):
Miapimoquitch
Kamakawi
Ayeri
Lembrin
Hasu Khomiyo
Kelenala
Tseeyo
Bryatesle
Alashian
Zhyler
Yanusu
Jaibi
Old Adpihi
Marijo
Chamanar
*Unnamed
Skerre
Torain
Senjecas
1. With verbs to mark the perfect tense (with vowel harmony):
'dǫ̋a', give; 'dydǫ̋a', have given.
'dı̋sa', guard; 'dıdı̋sa', have guarded.
2. With adjectives to mark the elative degree (with vowel harmony):
'gőbi', beautiful; 'gygőbi', more/most beautiful.
'va̋di', good; 'vıva̋di', better/best.
3. With numbers to mark distributive adverbs:
'se̋m', one; 'sémsem', one by one, one at a time.
Ngengenoef
Neo-Khitanese
Vilani
Ryupisasa
Dahilese
Malabas
Tinzirean
Hacherian
Tine
Lekmokulka
Meftla
Velyan
Katkagor
Isitya
Alpic
Fila
Nova
Géarthnuns
Waku
Sihaku
Ishtol
Thiuas
Talmit
Ampizd
Majlang
Yaufulti
Ngaru
Avrelang
nedefinati
Dahu
Neo-Fictish
South Eresian
Standard Ancaron
Kassunetian
Mîrkšam
Qucheanya
Proto-Ksqrian
Ozavakve
Baranxe'i
Proto-Aukkangtin
Zorillo
Rawang Ata
Lonmai Luna

Nouns indicating persons use full reduplication as one way to form plural.

The meaning of adjectives(and sometimes other verbs) may be intensified by applying reduplications.

The diminutive for of some nouns are formed by the reduplication of the first syllable; the frequentative form of some verbs are formed by the reduplication of the last syllable.

Dhannuá
Llapakhi
Lhaa: Siri
Korpasian
Ieteje
Simbri
toka na musume

Full reduplication is very productive and is frequently used in toka na musume.

Nayraki
Mithara
Anikele
Tslure Thujekatsoth
Kashithes
Kiswona
Hercsex
Ebo Lingai
Pupupulandish

besides reduplications, there is also a triplication, and triplication is known to form proper names from monosyllabic words, e.g. "Popopo"(Kirby) is derivated from the word po("ball") and "Dedede"(King Dedede) is derivated fromthe word de("bad-tempered")

Alakulian
Idhunaic
Tatari Faran
Platapapan
Old Lonmai luna
Old Arassenian
Gehui
Dahawj
Seto ka'palo
Thensarian
Ixe Wa
Proto-Angelic
Snahhian
Tizian
Emeranye
Aoma
Madekankomi
Netagin
Kuty
Temarp
Proto-Zachydic
Bơlơn
Haneko
Lang3
Phitonic
Kiitra
Ronc Tyu
Vrkhazhian
urdcax
Taalen
Lohsee
Minhast
Nuim
Mezhat
Of note, the verbal intensifier "very, a lot, like hell" involves partial (C(C)V- or VC-) reduplication of the verb's first syllable.
Cikap
Jumban
Proto-Toroq
Traup
Eiyrnas
Maqacho
Averagelang
Afri
Yeqochun
Spraka
Workinprogressian
Siaswo
Delniit
Tnaaq
Testonian
Settamu
Agyiyi
Jutean
Pach'o
Haotyetpi
Proto-Tampoluric
Ba'eni
Salga
Iloyan
bal'ukbar
Ernalan
diSellat
Trayks
Leom
Red Creek
Jywe
Weakwan
Hanolen
Lagu
Talbas
Gothish
Mesak
Sape
Kagian
Touijab Kikxot
Qrai
Old Sumrë
Faikari
Ancient Draconian
Illicraic
Ancient Caspian
INS
Interesting
Average Conlang
At'ik
Istokahi
Ilcharotic
Enlalen
Atlam
Matanin
Sambahsa
Polarian
Q.T. Lingua Franca
Chlouvanem
Huttese (fanmade)
Tangachi

Natlangs (62):
Mandarin
Hungarian
Turkish
Abkhaz
Arabic (Egyptian)
Alamblak
Amele
Arapesh
Asmat
Berber (Middle Atlas)
Chamorro
Chukchi
Canela-Kraho
Epena Pedee
Ewe
Georgian
Gooniyandi
Hausa
Hebrew (Modern)
Hindi
Hmong Njua
Hunzib
Jakaltek
Kayardild
Khalkha
Khmer
Khoekhoe
Khasi
Kilivila
Kannada
Kanuri
Koasati
Korean
Lavukaleve
Lakhota
Luvale
Malagasy
Maori
Maricopa
Maung
Maybrat
Meithei
Mangarrayi
Ndyuka
Ngiyambaa
Nunggubuyu
Oromo (Harar)
Paumari
Persian
Swahili
Tagalog
Thai
Tiwi
Tukang Besi
Vietnamese
Wari'
Yaqui
Yoruba
Cree (Plains)
Karok
Trumai
Coos (Hanis)