οὗτος G5126
this (masculine/neuter singular oblique); genitive and dative forms of 'this' for masculine/neuter reference
This covers τούτου (genitive singular masculine/neuter, 'of this') and τούτῳ (dative singular masculine/neuter, 'to/for this'). The genitive marked possession ('of this man'), source ('from this'), or relationship, while the dative indicated indirect objects, means, or location ('in this'). Since Greek distinguished masculine from neuter only in nominative and accusative singular forms, these oblique cases served both genders. Biblical texts used these forms constantly to maintain reference to previously mentioned masculine or neuter nouns—persons, concepts, times, or places—across complex sentence structures without tedious repetition. The forms were syntactic glue holding discourse together.
Senses
BDB / Lexicon Reference
οὗτος, αὕτη, τοῦτο, genitive τούτου, ταύτης, τούτου, etc.: the dual feminine never in Attic dialect, see ὁ, ἡ, τό, [near the start]:—demonstrative pronoun, this, common from Refs 8th c.BC+ __A ORIGIN and FORMS: οὗτος, αὕτη, τοῦτο probably arose from a reduplication of the demonstrative ὁ, ἡ, τό with insertion of -υ- (= Sanskrit Particle u), e.g. ταῦτα from τα-υ-τα: Doric dialect genitive singular…