Sound Imitation Words - Otomanego

...They are called one-word sentences, and can express in one word (1) an exclamation, (2) a call, (3) a request, (4) a response, (5) a refusal, (6) a negation, (7) a name, or (8) a question. To make do with the few words available, there is the general phenomenon of saying "wanwan" when seeing any quadruped animal, as well as many imitations of sounds (such as "ga-ga" for a vacuum cleaner) and childcare words (such as "o-be-be" for a kimono). Because their articulatory organs are immature, it is particularly difficult to pronounce sounds that begin with the "sa" and "ra" sounds, such as "kacha" (umbrella) and "daion" (lion)....

*Some of the terminology explanations that refer to "sound imitation words" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…一語文といわれ，一語で(1)感嘆発声，(2)呼びかけ，(3)要求，(4)応答，(5)拒否，(6)否定，(7)命名，(8)質問を表現する。少ない手持ちの語で間に合わすため，四足獣を見ると皆〈ワンワン〉ですます般用現象，ものの音をまねた音まね語(掃除機を〈ガーガー〉)，育児者の用いる育児語(着物を〈オベベ〉)が多い。調音器官が未熟なため幼児音で〈カチャ〉(傘)，〈ダイオン〉(ライオン)など，サ行音，ラ行音の発音が特にむずかしい。…

※「音まね語」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報