Lexical Definition

‎παράδοσις‎ parádosis (par-ad'-os-is) tradition ^G:N-F
from ‎παραδίδωμι‎

ordinance, tradition.

• transmission, i.e. (concretely) a precept
• specially, the Jewish traditionary law

Abbott-Smith

παρά-δοσις, -εως, ἡ (< παραδίδωμι), [in LXX: Es 7:26 (אֱסוּר), Je 39 (32):4* (נתן ni.), Je 41 (34):2**;]
1. a handing down or over, transfer, transmission (Arist., Polyb., al., LXX).
2. tradition of doctrine (Plat., Epict., al.); by meton., of the doctrine itself : Mt 15:2, 3, 6, Mk 7:3 ff., I Co 11:2, Ga 1:14, Col 2:8, II Th 2:15 3:9.†

Abbott-Smith References

Liddell-Scott-Jones

παράδοσις-δοσις, εως, ἡ,

handing down, bequeathing, transmission, τοῦ σκήπτρου [Refs 5th c.BC+]; handing over, transfer, ἡ π. τῶν χρημάτων [Refs 5th c.BC+]; σίτου, etc., [Refs 3rd c.AD+]; τῆς βασιλείας [Refs 1st c.AD+]; ἐν παραδόσει παραλαμβάνειν ἀεί, of a reserve fund, [Refs 3rd c.BC+]

__2 transmission of legends, doctrines, etc., tradition, διδασκαλία καὶ π. [Refs 5th c.BC+]; treatment, exposition, ὅπως πᾶσιν εὐπαρακολούθητος γένηται ἡ π. [Refs 2nd c.BC+]; ἡ βοτανικὴ π. the subject of botany, [Refs 5th c.BC+]; σύντομος π. succinct account, [Refs 5th c.AD+]
__2.b in military sense, transmission of orders, [Refs 2nd c.AD+]
__3 that which is handed down or bequeathed, tradition, doctrine, teaching, ἡ π. τῶν πρεσβυτέρων [NT+5th c.AD+]: also in Grammars, Ἑλληνικὴ π. [Refs 2nd c.AD+]; in textual criticism, defined as ἡ τῶν γραμματικῶν μαρτυρία, [Refs 2nd c.BC+]
__II surrender, πόλεως [Refs 5th c.BC+]; ἐκ παραδόσεως, opposed to κατὰ κράτος, [Refs 2nd c.BC+]; giving up to punishment or torture, [Refs 5th c.BC+]
__II.2 Astrology texts, handing over, τῶν χρόνων [Refs 2nd c.AD+]

_{LSJ Scripture Refs: Matt.15.2 ☩ Mark.7.3}