Aitäh
Aitäh is the Estonian word for "thank you" and functions as a common informal interjection used to express gratitude in everyday speech. It is suitable in most casual interactions and with close acquaintances. In more formal or written Estonian, speakers often prefer täänan (I thank you) or paljus tänu (many thanks), especially in official contexts or when addressing strangers or superiors. Aitäh can stand alone as an exclamation, as in "Aitäh!" or be included in a sentence, such as "Aitäh abi eest."
Etymology and meaning: The origin of aitäh is not entirely settled. It is generally regarded as deriving
Usage notes: While ubiquitous in spoken language, the tone of aitäh can range from casual to polite
Related expressions: Palju tänu (many thanks) and suur tänu (a big thank you) express greater gratitude, while