the word 'these' originates from the old english plural demonstrative pronoun and determiner 'þās', the plural form of 'þēs' (this). it is part of the ancient germanic demonstrative stem, which can be traced back to proto-germanic 'þai-', itself derived from the proto-indo-European demonstrative base 'to-'. the evolution from 'þās' to 'these' involved regular phonetic changes in middle english, including the loss of the thorn character (þ) and its replacement by 'th', and the addition of the final '-e' which was later silenced. as a core function word, its form has remained tightly fused, serving as the essential plural counterpart to 'this' for indicating proximate items.

the word 'these' is a modern english form derived from the old english plural demonstrative 'þās', which is a single, indivisible grammatical unit.