mountain plants, because plants or natural objects still
exist in the environment. As time changes, the
disappearance of plants, the destruction of nature, the
change of traditional to modern lifestyles,
technological developments, also contribute to the
change of language. Thus, the shrinking
understanding of lexical meaning and its function
which is the lexicon is mentioned but the existence of
objects which are related to the name of the plant is
hardly recognized by young generations. Evidence of
gaps and inequality of understanding across
generations, some ‘kayu’ lexicons that were once
commonly used by UGV people but are now rarely
used. For example the leksikon of bintatar
1
, gomet
2
,
dan ngikil
3
‘kayu’. These lexicons are currently only
controlled by the older generation because the
younger generation is now no longer related to the
plant.
Much research has been done on ethnic
languages, but few have tried to look at it from an
ecolinguistic perspective. Vice versa. For example,
the research of Solonchak & Pesina, (2014)entitled
"Lexicon Core and Its Functioning" was published in
the journal 'Language Sciences', and research by
Wenjuan, (2017)entitled "Ecolinguistics: Towards a
new harmony" published in the journal' Procedia-
Social and Behavioral Sciences. Both journals are
international journals based on scopus indexed. The
"Lexicon Core and Its Functioning" research focuses
on discussing critical issues related to word function
in verbal processes, and "Ecolinguistics: Towards a
new harmony" research discussing the issue of the
unification of ecolinguistic views of China and
Europe to propose a new ecolinguistic view.
Reflecting on the previous research, researcher
see that there are still deficiencies because the two
studies did not try to see how the understanding of a
community group, especially in terms of the use of
ethnic languages. Keep in mind that ecolinguistic
studies are subdisciplines of linguistics that cannot be
separated from social and cultural sciences. This is
what underlies researcher to uncover this
phenomenon. There are several reasons why this
research must be conducted,first; to prove that
changes in social structure and natural environment
can affect language use, second; ethnic language is a
symbol, identity and identity of a group, so it must be
preserved to avoid extinction considering that the use
of foreign languages is now considered a symbol of
success and also association, third; the initial function
1
This tree trunk is used as firewood
2
The leaves of this tree are used as a wrapper
fortraditional community food
of ethnic language as an intra-ethnic language now
only functions as a cultural tool whose context of
limited use in traditional ceremonies must be saved,
fourth; ethnic language is one of the ancestral heritage
that must be maintained. PDL as one of the regional
languages that is a cultural asset deserves to be
studied to record how much PDL changes and shifts
are due to changes in the community of it language.
The focus of the environment around the forest slopes
is an observation because the PDL speakers in UGV
Dairi Regency are in the mountains and hills. This
research is an input to the community in order to
increase the quantity of ethnic language used by
young generation and to involve them in activities
related to nature so that the gap in understanding
lexicon between parents and children can be
minimized, as well as related parties, namely the local
government or language body for learning ethnic
language is included in the school curriculum.
Considering ethnic languages are a source of culture
literacy, there must be a program of conservation,
revitalization, development, and language protection
that must be carried out by all parties.
2 METHOD
This researchused quantitative descriptive methods.
To obtain accurate lexicon data, interviews were
conducted with key informants with the criteria of
controlling PDL, aged over 65 years, working as a
farmer for more than 30 years, which was born and
raised at UGV. The ‘kayu’ lexicon data obtained from
the key informant was then tested to the local
community which was divided into three age groups,
namely age ≥ 60 years, age 25-59 years, and 12-24
years. Each group consists of 20 respondents.
Techniques for obtaining each level from the three
age groups use the following table:
Table 1: UGV Community Understanding Testing of the
‘kayu’ Lexicon.
Remarks:
3
This tree produces poisonous roots and was used to
catch fish in the river or in the lake
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