Sæll Haukur!
 
Having read your response to Arlie, I want to have another go at ...The brothers were both big and strong...
 
Broeðrnir váru bæði miklir ok sterkir
 
But I´m confused as to what part of speech bæði is in this context.  I don´t think it can be a conjunction because conjunctions introduce either another main clause
 
  hann er mikill ok broðir hans er sterkr
 
or a subordinate clause
 
   I will come so that I can meet you
 
Is bæði an adverb?  I know they can modify verbs, adjectives or other adverbs - or at least they can in English!!!
 
Help!!!
Sarah (Confused)