The house is nearing completion

I saw an example from a dictionary as below:
The house is nearing completion (=almost finished).

I don’t understand why the word “near” can be transformed into “nearing”. Does that mean “near” can be a verb?

Thank you!!!

The word “near” can be an adjective, adverb, verb, or preposition: near - Wiktionary

Consider this to be the infinitive form of a phrasal verb: TO NEAR COMPLETION
The affirmative present progressive verb forms of TO NEAR COMPLETION are:
am nearing completion
is nearing completion
are nearing completion