I think the 'two-tongue' topic cropped up earlier -- the cognates for
'language' in many languages invoke the physical 'tongue' -- the most
obvious being the Romance 'lingua/langue/etc' and the Slavonic 'yazik.'

Could one also, perhaps, note hints of lying or evasion: 'two tongues'
linked to the idiom 'he [the serpent] speaks with forke'd tongue?' That
reading might also resonate with the root 'nebula' (cloud) whence 'nebulous'
meaning hazy/incoherent? Then CK's comment on line 616 is deliberately
evasive, listing dozens of incongruous 'language' pairs, starting with
English and Zemblan and ending with 'American and European!' Can the exiled
old-man (cf the Brit for 'father?' -- "My old man's a dustman ...") dying in
the motel be so multi bilingual?

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