Alternation ‘passive/reflexive’ (Coded)

the verb fergaigidir is labile and the angry person can either be the subject or the object, although the transitive, causative, use is mainly found in the passive, where according to the Early Irish rules deictic persons are coded as object indexes (pronominal infixes) while 3rd persons as subjects (nominative case and person inflection on verbs). CorPH classifies 2 examples (with 2SG index) out of 7 as "reflexives" ('you anger yourself'), while eDIL (though adding reflex. dep?) groups them with passives ('you are angered'). The first option would imply 3rd person object indexes for 3rd persons and a different frame, i.e. V.subj[3] 3-nom [anger causer] 2-infpro=3 (fri+2-acc), the second would imply agreement for 3rd persons. The alternation has been classified here as passive because it is continued by a passive construction in later texts.