globellum.

From globulus + -lus or globus + -ellus. Likely influenced in its semantics by glomus (“ball of yarn”, cf. especially its diminutive *glomellus). Attested- albeit as a hypothetical form- by Isidore in the passage quoted below, where he discusses the origin of lubellum. He apparently cites both forms with the ending -um, despite the masculine gender suggested by his own etymology. Other manuscripts of Isidore's work have iubellum or gubellum (⟨g⟩ = [d͡ʒ]?) instead of lubellum, reflecting various palatalized outcomes of initial Latin /ɡl-/, continued in some of the Iberian descendants. The form lubellum is corroborated by the Liber Glossarum, published not long after Isidore's death.