astronautics.
Navigation through space.
Meaning & usage
Navigation through space.
The science and technology of space flight.
Where this word comes from
Etymology tree Proto-Indo-European *h₂eHs- Proto-Indo-European *-tḗr Proto-Indo-European *h₂stḗr Proto-Hellenic *astḗr Ancient Greek ἀστήρ (astḗr) Ancient Greek ἄστρον (ástron)der. French astro- Proto-Indo-European *(s)neh₂- Proto-Indo-European *-us Proto-Indo-European *néh₂us Ancient Greek ναῦς (naûs) Proto-Indo-European *-tósder. Ancient Greek -της (-tēs) Ancient Greek ναύτης (naútēs)der. French -naute French astronaute Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -ique Middle French -ique French -ique French astronautique ▲ Old French -iquebor. Middle English -ik English -ic Old English -as Middle English -es English -s English -ics English astronautics From French astronautique (“astronautics”) + English -ics. By surface analysis, astro- (“space”) + nautics (“navigation”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.