The Lala of the Turks (Cantemir, p. 34) and the Tata of the Greeks (Ducas, c. 35) are derived from the natural language of children; and it may be observed, that all such primitive words which denote their parents, are the simple repetition of one syllable, composed of a labial or a dental consonant and an open vowel (Des Brosses, Mechanisme des Langues , tom. i. p. 231-247).