κοινά

Uncertain. Hesychius gives the definition as χόρτος (khórtos). The stem κοιν- (koin-) matches perfectly with the expected Greek descendant of Proto-Indo-European *ḱóyno-, with cognates including Old Church Slavonic сѣно (sěno), and Lithuanian šienas. This would work with the definition "grass, hay" of χόρτος (khórtos). However, some have argued that it may simply be an inflected form of κοινός (koinós, “common”), interpreting it as simply a communal piece of land, lining up with the "barn, pasture" sense of χόρτος (khórtos).

κοινᾱ́ • (koinā́)

1. The meaning of this term is uncertain. See etymology.

• κοινά in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• κοινά in Trapp, Erich, et al. (1994–2007) Lexikon zur byzantinischen Gräzität besonders des 9.-12. Jahrhunderts [the Lexicon of Byzantine Hellenism, Particularly the 9th–12th Centuries], Verlag der Österreichischen Akademie der Wissenschaften
• Hesychius' Lexicon: κ
• Beekes, Robert S. P. (2010) Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN
• Chantraine, Pierre (1968–1980) “κοινά”, in Dictionnaire étymologique de la langue grecque (in French), Paris: Klincksieck, page 552a

See the etymology of the corresponding lemma form.

κοινᾰ́ • (koinắ)

1. feminine nominative dual of κοινός (koinós)
2. feminine accusative dual of κοινός (koinós)
3. feminine vocative dual of κοινός (koinós)
4. neuter nominative plural of κοινός (koinós)
5. neuter accusative plural of κοινός (koinós)
6. neuter vocative plural of κοινός (koinós)

κοινά • (koiná)

1. nominative neuter plural of κοινός (koinós)
2. accusative neuter plural of κοινός (koinós)
3. vocative neuter plural of κοινός (koinós)