What is the meaning of ł-?

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

1. Forms transitive verbs from nouns
2. Forms causative verbs from intransitive verbs
3. Forms transitive verbs with incorporated objects
4. Appears in many verbs with no clear function

Forms transitive verbs from nouns

Forms causative verbs from intransitive verbs

Forms transitive verbs with incorporated objects

Appears in many verbs with no clear function

an adverbial prefix

One of four classifier prefixes appearing on all Dena'ina verbs. It appears in many transitive verbs and causativizes verbs formed with other classifiers.

The ł-classifier, one of several classifiers which obligatorily appear in every Wailaki verb, used to form transitive and causative verbs.

A thematic prefix relating to non-tactile descriptive qualities.

Marks a reciprocal object of a postposition.

the ł- classifier or valence-change prefix, a causative-transitivizing prefix of active verbs that modifies the transitivity or valence and grammatical voice of a verb; it often transitivizes an intransitive -∅- (unmarked) verb:

Source: wiktionary.org