What Plato means
Plato has more than one naming route in the cited origin entries: “broad, wide”.
Dictionary etymologyReferences, data & attribution
From Middle English Plato, Platon, from Latin Platō, Platōn, from Ancient Greek Πλάτων (Plátōn), from πλατύς (platús, “broad, wide”), either because of Plato's robust body, or wide forehead or the breadth of his eloquence.
Excerpt from Wiktionary: Plato (English) · CC BY-SA 4.0
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Origin, language, and formation
Plato is used in English. Its origins include Ancient Greek.
Plato comes through Middle English Plato,Platon, Latin Platō,Platōn and Ancient Greek Πλάτων.
Pronunciation and spelling
In English, Plato is pronounced /ˈpleɪ.toʊ/.
American usage and historical context
In the United States, 216 boys were recorded with the name Plato between 1914 and 1977. Its highest annual count was 13 in 1928; its best national rank was #2,234 in 1914.