poetry, the plural is used for 'the gods', and the singular , meaning '(a) god', occurs in kennings for Odin and Thor. Modern English writers frequently anglicize the god's name by dropping the proper noun's diacritic, rendering Old Norse's Týr as Tyr. The Proto-Germanic masculine noun ( ) means 'a god, a deity', and it probably served as a title that came to be associated with a specific deity whose original name is now lost. It stems from Proto-Indo-European , meaning 'celestial, heavenly one', hence a 'god' (cf. Sanskrit: 'heavenly, divine', Old Lithuanian: , 'a god, deity'), itself a derivation from , meaning 'diurnal sky', hence 'daylight-sky god' (cf. , , ). The Germanic noun is further attested in the Finnic loanword , found as a suffix in the deities and . The Romano-Germanic deity may also be related, although its origin remains unclear. Due to linguistic evidence and early native comparisons between and the Roman god Mars, especially under the name , a number of scholars have interpreted as a Proto-Germanic sky-, war- and thing-god. Other scholars reject however his identification as a 'sky-god', since was likely not his original name but rather an epithet that came to be associated with him and eventually replaced it. Origin of Tuesday The modern English weekday name Tuesday comes from the Old English , meaning 'day of Tīw'. It is cognate with Old Norse , Old Frisian , and Old High German (Middle High German ). All of them stem from Late Proto-Germanic ('Day of '), a calque of Latin ('Day of Mars'; cf. modern Italian , French , Spanish ). This attests to an early Germanic identification of with Mars. Germanic weekday names for Tuesday that do not transparently extend from the above lineage may also ultimately refer to the deity, including Middle Dutch and , Middle Low German , and Old High German (modern ). These forms may refer to the god's association with the thing, a traditional legal assembly common among the ancient Germanic peoples with which the god is associated. This may be either explained by the existence of an epithet, ( 'thing-god'), frequently attached to Mars (), or simply by the god's strong association with the assembly. T-rune The god is the namesake of the rune representing (the Tiwaz rune) in the runic alphabets, the indigenous alphabets of the ancient Germanic peoples prior to their adaptation of