co-sibling-in-lawWiktionary 原文构词拆分co-前缀Together: the root word is done co-incidently. · Having commonality, similarity with respect to the root.+sibling-in-law词根/词干词源说明From co- + sibling-in-law.释义（英文）名词 Noun(rare) One's spouse's sibling's spouse; either of two (or more) people who marry siblings, from the perspective of the other.(rare) One's sibling's spouse's sibling; either of two (or more) people whose siblings marry each other, from the perspective of the other.词族相关词（2）co-in-lawco-parent-in-law