Ta
来自Big Physics
wiktionary
Uncertain, but possibly young child's pronunciation of thanks [1] [2] or an acronym for 'thanks a lot'.
Alternatively, derived from Danish tak, from Old Norse þǫkk, from Proto-Germanic *þankō, *þankaz.
ta
Altered from si in the 19th century to prevent having two notes of the musical scale starting with the same letter, to become ti. vowel changed to 'a' to signify a flattened note.
etymonline
ta
1772, "natural infantile sound of gratitude" [Weekley].
