N1
めく・めいた
Like, To show signs of, To have the appearance of, To come to a (state) similar to, Somewhat, An air of, Feels almost like
昨日までは嘘みたいに寒かったのに、やっと春めいてきた！
It was ridiculously cold until yesterday, but it's finally starting to feel like spring!
Explanation
「めく」 attaches to a few nouns and makes a verb meaning 'to begin to show the feel of ..., without fully becoming it'.
Seasons: 「春めく」 (to feel like spring), 「秋めく」 (to feel like autumn)
Mystery and hints: 「謎めく」 (to seem mysterious), 「皮肉めく」 (to sound sarcastic), 「冗談めく」 (to sound like a joke)
「春めいてきた」 (It's starting to feel like spring). Before a noun use 「めいた＋noun」: 「皮肉めいた言い方」 (a sarcastic way of saying it), 「謎めいた笑み」 (a mysterious smile).
It attaches to a limited set of nouns (春, 秋, 謎, 皮肉, 冗談, 脅迫, 説教, 芝居, 作り物 ...); you cannot attach it to just any noun.
Mixed up with
「めく」: a faint air or sign, subtle and elegant (春めく, 謎めく, 皮肉めく).
「びる」: taking on a quality, as in 「大人びる」 (look mature) and 「古びる」 (look old).
「っぽい」: casual and works with many things, as in 「子供っぽい」 (childish) and 「安っぽい」 (cheap-looking).
「らしい」: having the typical qualities, as in 「男らしい」 (manly).