Endlong

• (adv. & prep.) Lengthwise; along.
Found on http://thinkexist.com/dictionary/meaning/endlong/

Endlong

End'long` adverb & preposition [ Confer Along .] Lengthwise; along. [ Archaic] « The doors were all of adamants eterne, I-clenched overthwart and endelong With iron tough.» Chaucer. « He pricketh endelong the large space.» Chaucer. «...
Found on http://www.encyclo.co.uk/webster/E/37

endlong

lengthwise
Found on http://phrontistery.info/e.html
No exact match found