noun
slight cold; touch of a cold
Describes feeling like one is coming down with a cold, or having a mild lingering cold. Often used with 〜だ or 〜の.
昨日から風邪気味で、のどが痛い。
I've had a touch of a cold since yesterday, and my throat hurts.
風邪気味のときは、早めに休んだほうがいい。
When you feel a cold coming on, it's better to rest early.
風邪 means a full-blown cold, while 風邪気味 refers to a mild or incipient cold.
Compound of 風邪 (cold) and 気味 (sensation, feeling). The exact historical derivation is uncertain, but the combination naturally expresses a mild or suspected cold.