出典:Wiktionary
出典:『Wiktionary』 (2026/03/11 00:53 UTC 版)
Borrowed from Latin rēctō foliō (“on the right leaf, on the right page”), the ablative case of the Latin rēctus (“right”). Compare versus (“turned”).
From rēctus (“straight”) + -ō.
See rēctus.
出典:『Wiktionary』 (2025/03/21 14:54 UTC 版)
From international scientific vocabulary, reflecting a New Latin combining form, indirectly from Latin rectum by the same path whence also English rectum (which see).