Picture someone holding out a hand without first checking the other person's face. No guard goes up, no reason is looked for behind what was said. That starting position — believing first, checking later or not at all — is what the word holds, whether it sits on one person or on the space between two people.
From the word’s history
Wiktionary traces trusting to Middle English trustyng / trostinge, formed as trust + -ing. The -ing takes the act of trusting and freezes it into something you can describe with.
Wiktionary 記載 trusting 來自中古英文 trustyng、trostinge，構詞是 trust 加 -ing。可以想成 -ing 把「相信」這個動作定格下來，變成可以拿來形容東西的樣子：定在一個人身上，就是他的個性；定在一段關係上，就是那段關係的質地。
Wiktionary entry supplied in the evidence packet (kaikki:3f6f69a190036ae4), etymology_text: "From Middle English trustyng, trostinge, tristynge, equivalent to trust + -ing."
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
trustingadj/ˈtɹʌstɪŋ/
- 1
Inclined to believe the claims or statements of others; inclined to confide readily; trustful.
- She has been happily involved with the same woman for almost three years. During that time, they have grown together, dealt well with their problems and have worked consistently for a loving and trusting relationship.
這個拼法也被記錄為下列字的變化形：
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。