שָׁקֵד

From LSJ

γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at

Source

English (Strong)

from שָׁקַד; the almond (tree or nut; as being the earliest in bloom): almond (tree).