以下、本コラム執筆の参考サイト：

https://ja.wikipedia.org/wiki/膠着語

https://en.wikipedia.org/wiki/Agglutinative_language

＜接着言語＞の訳で分かり易くて良いのではと考えます。

cf. glue の語源

https://www.etymonline.com/word/glue

"to stick together　互いにくっつくもの、糊、　clay 粘土も同根

https://ja.wikipedia.org/wiki/屈折語

＜活用言語＞の訳で分かり易くて良いのではと考えます。

https://en.wikipedia.org/wiki/Fusional_language

別名inflected langage

＜融合言語＞の訳で分かり易くて良いのではと考えます。

cf. inflect の語源

https://www.etymonline.com/word/inflect

inflect (v.)

early 15c., "to bend inward," from Latin inflectere (past participle inflexus) "to bend in, bow, curve," figuratively, "to change, alter, influence,"  from in- "in" (see in- (1)) + flectere "to bend" (see flexible). Grammatical sense "to vary by change of form" (especially at  the end of a word)  is  from 1660s. Related: Inflected; inflecting.

　内側に向かって折れ曲がるが原義。形式（特に単語の語尾）を変化させるとの文法上の意味は１６６０年に使用が始まる。

＊詰まりは文法上の意味は最初から活用の意味であり、おそらく、当時は適当な言葉見当たらないので1660 年になり inflect の語を当てたのでしょう。

他方フランス語では flexion の語を当てます。

https://fr.wiktionary.org/wiki/flexion

(Grammaire) Modification de la forme d’un mot par rapport a ce qui est  considere comme sa forme de base, par la conjugaison et la declinaison.

https://ja.wikipedia.org/wiki/エストニア語

https://ja.wikipedia.org/wiki/言語交替

　面白い記事がみつかりましたのでご紹介しましょう。英語話者向けに日本語の特徴を説明するものですが、大変優れた内容だと思います。

https://8020japanese.com/japanese-sentence-structure/

Japanese Sentence Structure: The Ultimate Beginner’s Guide

English vs Japanese sentence structure

Most people find Japanese sentence structure to be difficult and  confusing.

This is completely understandable considering how fundamentally  different it is to other languages, but the truth is that Japanese  grammar is  actually incredibly logical ? it just needs to be looked  at  from the right angle.

Usually, the basic structure of Japanese sentences is considered  to be SOV ? subject-object-verb (eg. I sushi eat). This description  makes it  easier to compare with English, for example, which  follows an SVO structure, but the truth is, this comparison is  mostly meaningless because 　the  two languages function in  completely different ways. The SOV label is also wrong  sometimes, as it is not uncommon in Japanese to see  sentences   with the object appearing before the subject. No wonder it seems  so confusing…

Instead of trying to fit a Japanese-shaped peg into an  English-shaped hole, let’s start again.

Firstly, in English, the main pieces of a sentence go in a specific  order. The person doing the action (the subject, eg. I) 　is first,  followed by the  word that describes the action (the verb, eg. eat),  then the thing that the action is done to (the object, eg. sushi). In  English, it is the word  order  that tells us who did what.

Japanese sentences are structured around grammatical markers  called ‘particles’. Each particle indicates how the word before it  relates to  other  words in the sentence, usually to the verb. The  verb appears last, but the order of the other words can vary  because it is the particles,  not  word order, that tell us who did  what.

For example, a basic sentence might have a topic (which is often  the same as the subject) followed by the particle ‘wa’, then an  object with  the  particle ‘wo’, and finally the verb. This basic  word ordering is why Japanese is often considered an SOV  language, but as long as the right  particles are used with the right  words, the actual order of the words can be changed.

（和訳は次回�Bに続く）