where do the clicks in south african languages come from
Xhosa language Xhosa (English: /ˈkɔːsə/ or /ˈkoʊsə/;[6][7][8] Xhosa: isiXhosa [isikǁʰɔ́ːsa]) is a Nguni Bantu language with click consonants ("Xhosa" begins with a click) and one of the official languages of South Africa.[9] Although not widely spoken there, it is also an official language of Zimbabwe.[10] "Xhosa is spoken as a first language by 8.2 million people and by 11 million as a second language in South Africa, mostly in Eastern Cape Province. Total number of users in all countries is 19.2 million (Ethnologue)".[11] Like most other Bantu languages, Xhosa is a tonal language;[12] the same sequence of consonants and vowels can have different meanings, depending on intonation. Xhosa has two tones: high and low.[13]