ος relative pronoun - nominative singular masculine
hos  hos: the relatively (sometimes demonstrative) pronoun, who, which, what, that -- one, (an-, the) other, some, that, what, which, who(-m, -se), etc.
εμαρτυρειτο verb - imperfect passive indicative - third person singular
martureo  mar-too-reh'-o: to be a witness, i.e. testify
υπο preposition
hupo  hoop-o': under, i.e. (with the genitive case) of place (beneath), or with verbs (the agency or means, through); (with the accusative case) of place (whither (underneath) or where (below) or time
των definite article - genitive plural masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
εν preposition
en  en: in, at, (up-)on, by, etc.
λυστροις noun - dative plural neuter
Lustra  loos'-trah: Lystra, a place in Asia Minor -- Lystra.
και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
ικονιω noun - dative singular neuter
Ikonion  ee-kon'-ee-on: image-like; Iconium, a place in Asia Minor -- Iconium.
αδελφων noun - genitive plural masculine
adephos  ad-el-fos':  a brother near or remote -- brother.