granum

From the late 19th c., from Latin grānum (“grain, seed or small kernel”). Doublet of corn, grain, gram, and grao.

granum (plural grana)

1. (biology) A stack-like structure in plant chloroplasts that contain chlorophyll; the site of photosynthesis.

granum (plural granums)

1. (obsolete, regional) One's grandmother.
   • 1663 (indicated as 1664), [Samuel Butler], “Canto III”, in Hudibras. The Second Part. […], London: […] T[homas] R[oycroft] for John Martyn, and James Allestry […], →OCLC, page 175:

     Each of 'em has a ſev'ral Gin, / To catch Intelligences in. / Some by the Noſe vvith fumes trapan 'em, / As Dunſtan did the Devil's Grannum.

• grannum

From Proto-Italic *grānom, from Proto-Indo-European *ǵr̥h₂nóm.^[1]

• (Classical Latin) IPA^(key): [ˈɡraː.nũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈɡraː.num]

grānum n (genitive grānī); second declension

1. grain, seed, small kernel

Second-declension noun (neuter).

• grānifer

• “granum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “granum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "granum", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “granum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette, page 722.
• granum in Georges, Karl Ernst; Georges, Heinrich (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th edition, volume 1, Hahnsche Buchhandlung, column 2962