reciprocal
UK: rɪˈsɪprəkəl | US: rɪˈsɪprəkəl
adj. given, felt, or done in return (e.g., reciprocal respect)
adj. mutual; corresponding but reversed (e.g., reciprocal agreement)
n. a mathematical expression or function inversely related to another
reciprocal = re<back> + ciproc<take> + al<adjective suffix>
- re: Latin prefix meaning "back" or "again."
- ciproc: Derived from Latin cipere (variant of capere, "to take"), implying exchange or alternation.
- al: Suffix forming adjectives (e.g., "natural," "personal").
Etymology Origin:
The word traces to Latin reciprocus ("moving back and forth"), combining re- ("back") and pro- ("forward") with capere ("to take"). It originally described alternating motion (like tides) before evolving to denote mutual exchange in actions or feelings. The mathematical sense emerged later, reflecting inverse relationships.
Their friendship was based on reciprocal trust.
The treaty included reciprocal trade benefits.
The reciprocal of 5 is 1/5.
She appreciated his reciprocal gesture of kindness.
Reciprocal agreements ensure fair treatment between nations.