sín

Part of speech: possessive pronoun
his, her, its; their (also sýn)
Etymology
[← Prot-Germ *sīnaz (pronominal stem with refl meaning); Goth seina Gen “his/her/its/their own”, sis Dat “to himself/herself/itself; to themselves”, sik Acc “himself, herself, itself; themselves”; OHG sih Acc; O Icel sér Dat, sik Acc; OE has retained only the form of Gen case with the meaning of a poss pron; cf Goth seins; O Fris sīn; O Sax sīn; Dt zijn; OHG sīn (Mod G sein); Icel sínn; Sw sin ← Indo-Europ *su̯e-, *se-; Sanskr svás “one's own”; Avest hva- “one's own”; Anc Gr ὅς “one's own”; Lat suus “one's own; his, her, its, etc“; Lith sãvas “one's own”; O Slav свои “his, her etc”; (Russ свой)]
Paradigm

3.1. Demonstrative pronouns

3.1.1. Demonstrative pronoun se, séo, þæt (that)

declension of the demonstrative pronoun
se, séo, þæt
(that)
singular number
masculine feminine neuter
nominative se séo þæt
genitive þæs þǽre þæs
dative þǽm, þám þǽre þǽm, þám
instrumental þý, þon þǽre þý, þon
accusative þone þá þæt
plural number
all genders
nominative þá
genitive þára, þǽra
dative (instrumental) þǽm, þám
accusative þá

3.1.2. Demonstrative pronoun þes, þéos, þis (this)

declension of the demonstrative pronoun
þes, þéos, þis
(this)
singular number
masculine feminine neuter
nominative þes þéos þis
genitive þises, þisses þisse þises, þisses
dative þisum, þissum þisse þisum, þissum
instrumental þisse þisse þisse
accusative þisne þás þis
plural number
all genders
nominative þás
genitive þissa
dative (instrumental) þisum, þissum
accusative þás