lexicostatistics vs etymology

lexicostatistics and etymology both are nouns.

Word	Noun	Adjective	Verb	Adverb
lexicostatistics	Yes	No	No	No
etymology	Yes	No	No	No

As nouns, etymology is a hypernym of lexicostatistics; that is, etymology is a word with a broader meaning than lexicostatistics:

lexicostatistics: a statistical technique used in glottochronology; used to estimate how long ago different languages evolved from a common source language
etymology: the study of the sources and development of words

lexicostatistics (noun)	etymology (noun)
a statistical technique used in glottochronology; used to estimate how long ago different languages evolved from a common source language	the study of the sources and development of words
	a history of a word