The Egyptian god Tehuti is known to the readers of Plato under the name of Thōyth. He is the Egyptian Hermes, and the name of Hermes Trismegistos is translated from the corresponding Egyptian epithet which is often added to the name of Tehuti. He represents the Moon, which he wears upon his head, either as crescent or as full disk; and as our word moon is derived from the root mâ, to measure, and "was originally called by the former the measurer, the ruler of days and weeks and seasons, the regulator of the tides, the lord of their festivals, and the herald of their public assemblies,"[1] we shall not be surprised if we find a very similar account of the etymology and attributes of Tehuti. There is no such known Egyptian word as tehu, but there is teχu which is a dialectic variety, and is actually used as a name of the god. This form supplies us with the reason why the god is represented as an ibis. As Seb is the name both of a goose and of the Earth-god, so is Techu the name of an ibis and of the Moon-god. Tehuti probably signifies, as M. Naville has suggested, the "ibis-headed." But it means something besides. Techu is the name of the instrument[2] which corresponds to the needle of the
