Lexical Definition

‎στατήρ‎ statḗr (stat-air') coin ^G:N-M
from the base of ‎καύχησις‎

piece of money.

• a stander (standard of value), i.e. (specially), a stater or certain coin

Abbott-Smith

στατήρ, -ῆρος, ὁ [in Aq., Sm., for שֶׁקֶל ;]
a stater;
(a) a weight;
(b) a coin (used by late writers of the Greek τετράδραχμον): Mt 17:27 26:16, WH, mg.†

Abbott-Smith References

Liddell-Scott-Jones

στατήρ, ῆρος, ὁ,

(ἵστημι [Refs 5th c.BC+]; σ. Αἰγιναῖος as a weight, [Refs 5th c.BC+]

__II standard coin, struck in various materials, whether gold, electrum, or silver:
__II.1 gold, σ. χρυσοῖ, σ. χρυσοῦ, [Refs 5th c.BC+]; of various standards, e.g. σ. Δαρεικός (compare Δαρεικός) [Refs 5th c.BC+]; σ. Φιλίππειος, Ἀλεξάνδρειος, [Refs 4th c.BC+]; Πτολεμαϊκὸς σ. [Refs 2nd c.BC+]
__II.2 electrum [Refs 5th c.BC+]; at Phocaea, σ. Φωκαϊται, Φωκαιῆς, [Refs 5th c.BC+]
__II.3 silver, σ. Αἰγιναῖοι [Refs 5th c.BC+]; in Sicily called δεκάλιτρος σ., [Refs 5th c.BC+]; later applied to the Attic τετράδραχμον, [Refs 9th c.AD+]; also to the Ptolemaic τ., [Refs 3rd c.BC+] “*Geometry texts” 23.55,56; also of the Jewish shekel, [NT]
__III one who owes money, debtor, πολλοὶ σ., ἀποδοτῆρες οὐδ᾽ ἂν εἷς (οὐδαμεῖ conjecture Kaibel) [Refs 5th c.BC+]

_{LSJ Scripture Refs: Matt.17.27}