ἀποσημαίνω

A. announce by signs or signals, give notice, περί τινος Hdt. 5.20: abs., give a sign or signal, Pl. Euthd. 276b; νοσήματα ἀ. show themselves, Arist. Pr. 954b30.
2. c. acc., indicate by signs or symptoms, οὐδὲν ἀ. Hp. Epid. 1.9; = δηλῶδαι, S. Fr. 676; denote, represent, J. AJ 3.7.7, Plu. Sull. 7, etc.; indicate, J. AJ 1.3.8, al.; declare, ib.1.8.1,al.:—Med., show by signs or proofs, Hdt. 9.71; guess by signs, Ael. NA 6.58.
II. ἀ. εἴς τινα allude to him, Th. 4.27, cf. Plu. 2.177b; πρός τινα Philostr. V A 6.10.
III. give adverse signs, be unpropitious, τινί ib.2.33.
IV. in Med., seal up as confiscated, sequestrate, Ar. Fr. 432, X. HG 2.3.21; of persons, proscribe, ib.2.4.13 (also Act., ἀποσημανῶ· ἀποδιώξω, Hsch.).
2. generally, seal up, γράμματα Hdn. 4.12.6.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project