The Word Tajweed is from the root word Jawdah which means Quality. Although, it means Improving or to make something better for Tajweed e Quran.
This is an Arabic term that refers to correct pronunciation and recitation at a moderate pace when reciting the Quran. It is a series of guidelines that regulate the reading of the Quran. So, it is the grammar of the Quran which helps us to pronounce the letter properly.
It is a term that means proficiency or doing something well. When it added to the Quran, it implies that each letter of the Quran has its own set of rights and obligations. We recite the Quran and follow the rules that apply to each letter in various contexts. Then, we are giving the letter its proper meaning and giving it its right.
In fact, the aim of Tajweed is to improve a reciter’s ability to recite the Quran while adhering to the proper pronunciation of each letter as well as the rulings and characteristics that refer to each letter, without distortion or weakness. So tajwid is very essential.