same (adj.)

perhaps abstracted from Old English swa same "the same as," but more likely from Old Norse same, samr "same," both from Proto-Germanic *samaz "same" (source also of Old Saxon, Old High German, Gothic sama, Old High German samant, German samt "together, with," Gothic samana "together," Dutch zamelen "to collect," German zusammen "together"), from PIE *samos "same," from suffixed form of root *sem- (1) "one; as one, together with."

Old English had lost the pure form of the word; the modern word replaced synonymous ilk. As a pronoun from c. 1300. Colloquial phrase same here as an exclamation of agreement is from 1895. Same difference curious way to say "equal," is attested from 1945.

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Definitions of same
same (adj.)
unchanged in character or nature;
the village stayed the same
his attitude is the same as ever
same (adj.)
same in identity;
never wore the same dress twice
this road is the same one we were on yesterday
on the same side of the street
the same man I saw yesterday
same (adj.)
closely similar or comparable in kind or quality or quantity or degree;
animals of the same species
mother and son have the same blue eyes
two girls of the same age
the same rules as before
two boxes having the same dimensions
curtains the same color as the walls
the same day next year
same (adj.)
equal in amount or value;
the same amount
the same number
Synonyms: like
Same (n.)
a member of an indigenous nomadic people living in northern Scandinavia and herding reindeer;
Synonyms: Lapp / Lapplander / Sami / Saami / Saame
Same (n.)
the language of nomadic Lapps in northern Scandinavia and the Kola Peninsula;
Synonyms: Lapp / Sami / Saami / Saame