köken: Compound of aller (genitive plural of alle (“all”)) + Dings (genitive singular of Ding (“thing”)) (compare schlechterdings). Before the 19th century, the full form aller Dinge (“of all things”), with the plural Dinge, was used.
Es wird allerdings die Vermutung ausgesprochen...
Ich würde gerne zu deiner Party kommen, allerdings habe ich keine Zeit.
köken: Inherited from Old East Slavic вѣдѣ (vědě). Russian ведь (vedʹ) is a former Proto-Indo-European root perfect *wóyde with mediopassive ending -ai, with meaning "I have seen". Cognate with English wit.
Frellesvig views the pronunciation yahari as a hypercorrect back-formation from やっぱり (yappari), since intervocalic -p- would typically yield -w- and not -h- in modern Japanese. Compare the yapa- root in 柔(やわ)らか (yaparaka → yawaraka, “soft; pliant”), thought to be related. The pronunciation may be due to a spelling pronunciation of やはり, which could ambiguously represent yawari, yafari~yahari, or…