What is the meaning of D-?

deci- (“×10”)

deprecated notation for dextrorotatory (versus modern notation, (+)).

The d-classifier, one of four classifiers which obligatorily appear in every Ahtna verb with a variety of purposes. The d-classifier has the following uses:

1. Forms intransitive verbs from nouns
2. Forms iterative verbs via classifier shift from the ∅-classifier
3. Forms reflexive verbs
4. Forms benefactive verbs
5. Appears in transitive verbs with an incorporated objects
6. Appears in many verbs with no clear function

Forms intransitive verbs from nouns

Forms iterative verbs via classifier shift from the ∅-classifier

Forms reflexive verbs

Forms benefactive verbs

Appears in transitive verbs with an incorporated objects

Appears in many verbs with no clear function

my

him

it

alternative form of dh-

alternative form of il-

the d- classifier or valence-change prefix, a detransitivizing prefix of active verbs that modifies the transitivity or valence and grammatical voice of a verb, occurs in most passive, mediopassive, reflexive, and reciprocal verbs that are derived from verbs with a ∅- classifier; it produces the agentive passive verb forms

Source: wiktionary.org