(n) four Hebrew letters usually transliterated as YHWH (Yahweh) or JHVH (Jehovah) signifying the Hebrew name for God which the Jews regarded as too holy to pronounce
‖n. [ NL., fr. Gr. &unr_;; te`tra- (see Tetra-) + &unr_; a letter. ] The mystic number four, which was often symbolized to represent the Deity, whose name was expressed by four letters among some ancient nations; as, the Hebrew JeHoVaH, Greek qeo`s, Latin deus, etc. [ 1913 Webster ]