σπουδαιολογέω

A. speak seriously, talk on serious subjects, X. Smp. 8.41, Ph. 1.218:—Med., X. An. 1.9.28:—Pass., ὁ λόγος ἐσπουδαιολογήθη the matter was treated seriously, Id. Smp. 4.50.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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