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-bula, -bla-, -ula, -la Instrumental suffix.
Fossilized in Spanish. From Latin -bula 'id.'
From Proto-Italic *-þlo- 'id.' From Proto-Indo-European *-dhlo- 'id.'
Romance: Western Vulgar Latin: Asturian -la-, Portuguese -la-, Galician -la-, Catalan -ula-, French -bl(e)-, Italian -ba-; Eastern Vulgar Latin: Romanian -bulă (learned borrowing)
Indo-European: Balto-Slavic *-mi: Lithuanian -mi, Old Church Slavonic -mĭ; Armenian *-bhi: -b; Hellenic *-bhi: Mycenaean -pi; Indo-Iranian: Sanskrit (inst. pl.) -dhís
Present in words like fábula, but less obviously in words like the -bl- in hablar.