Ўзбекистон республикаси олий ва ўрта махсус таълим вазирлиги ўзбекистон давлат жаҳон тиллари университети инглиз тили назарий аспектлари №1

METHODS OF LEXICOLOGICAL RESEARCH:
Diachronic approach to the vocabulary study is based on the analysis of the changes a word undergoes from the moment of its appearance throughout its historical development.
Synchronic approach is based on the analysis of lexical units at a given period of time, usually coinciding with the period of the research.
In morphology the procedure generally employed for the purposes of segmenting words into the constituent morphemes is the method of Immediate and Ultimate Constituents. During breaking a word into its constituents at each stage of the procedure we segment the word into immediately broken morphemes, and they are termed as the Immediate Constituents (ICs). We finish the process of segmentation when we arrive at constituents which cannot be further broken, and these indivisible morphemes are referred to as the Ultimate Constituents (UCs).
The nature, type and arrangement of the ICs of the word is known as its derivative structure.