Morph: relations between morphs and lexical entries

Dear Ontolex community,

I’m very happy to share with you my first question.

I’m working on an ancient Greek lexicon project. The project involves the Ontolex and the Morph vocabulary to describe morphological structures and family relations between words (and, of course, lexical entries…)

To describe the morphological composition of a word, I lean on the morph:consistOf property. To describe the family relationship between words I use a subclass of the wordFormationRelation (wordFamilyRelation)

This is a basic example of the result:

:onoma_entry a ontolex:LexicalEntry ;
     ontolex:canonicalForm [ ontolex:writtenRep “ὄνομα”] .

:onomazo_entry a ontolex:LexicalEntry ;
     ontolex:canonicalForm onomazo_form .

:onomazo_form a ontolex:Form ;
ontolex:writtenRep “ὀνομάζω”;
     morph:consistOf :onoma_morph, :zo_affix .

:onoma_morph a morh:Morph ;
     Morph:baseForm [ ontolex:writtenRep “ὀνομά”];

:onoma_family a morph:wordFamilyRelation ;
vartrans:source :onoma_entry;
    vartrans:target :onomazo_entry :other_entries .


Things look straightforward here: family relations are reified with the ‘wordFamilyClass’ and the morphological composition of a word through the ‘consistOf’ property.

But there is one thing that I can’t understand. When I describe a relation between words (any relation), apparently there is no way to declare a link between the source word and the morph that is included in a derived word.

In my example, I have a link between the entry ‘onoma_entry’ and the lexical entry ‘onomazo_entry’ through the ‘ontolex:wordFamilyRelation’ class, but not between the entry ‘onoma_entry’ and the morph ‘onoma_morph’ which is something that I would expect because these two elements are basically the same.

This raises two questions:

1. how can I link morphological elements with lexical entries, knowing the fact that a stem and a base form of a lexical entry can have different forms?

2. how can I describe the “composing mechanics” that is involved in a derived word.

In my example, the word ‘onoma’ has a different form inside the word ‘ὀνομάζω’ (onomazo). Instead of being written ‘ὄνομα’ it’s ‘ὀνομά’ (different accents). Sometimes the stem can also have different letters. For instance, the word ‘ὄνομα’ (onoma) is written ‘ώνυμ’ (wnum) in the word ‘ψευδώνυμος’ (pseud-wnum-os), because of some specific merging rule. Where and how can I describe those specific compounding rules?

Thank you in advance!

Renato