Lexical Definition

‎παρατήρησις‎ paratḗrēsis (par-at-ay'-ray-sis) observation ^G:N-F
from ‎παρατηρέω‎

obervation.

• inspection, i.e. ocular evidence

Abbott-Smith

**† παρα-τήρησις, -εως, ἡ, [in Aq.: Ex 12:42 (v.s. παρατηρέω)*;]
observation: Lk 17:20 (Polyb., Plut., al.).†

Abbott-Smith References

Liddell-Scott-Jones

παρατήρησις-ησις, εως, ἡ,

observation, διειλημμένοι εἰς παρατήρησιςησιν kept under surveillance, Aen.[Refs 5th c.BC+]; ποιεῖσθαι τὴν π. [Refs 1st c.AD+]; μετὰ παρατηρήσεως so that it can be observed, NT.Luke.17.20: in bad sense, close observation, to detect faults, etc., [Refs 2nd c.BC+]; ἐνέδρα καὶ π. [Refs 1st c.AD+]; empirical observation, opposed to λογισμός, [Refs 2nd c.AD+]; so κατὰ ἱστορίαν ἢ π. [Refs 5th c.BC+]

__2. observance of rules, etc., [Refs 2nd c.BC+]
__3. remark, note, παρατηρήσεως ἄξια [Refs 5th c.BC+]; ψιλὴ π. bare notice, [Refs 2nd c.AD+]

_{LSJ Scripture Refs: Luke.17.20}