*aldiz^¹

From Proto-Indo-European *h₂él-ti-s ~ *h₂l̥-téy-s, a proterokinetic ti-stem from the root *h₂el- (Kroonen 2013: s.v. *aldi; Markey & Mees 2014: 4–9; Ringe 2017: 197–98; Rix et al. 2001: 262). The Proto-Germanic -d- reflects Verner’s Law in the root-accented syllable, with the weak-case consonantism subsequently generalized throughout the paradigm. Semantically, ‘age, lifetime’ developed naturally from the root’s Germanic intransitive sense ‘to grow, mature, grow old’ (Markey & Mees 2014: 4–5) . Cognate root formations include Latin alō, Old Irish ailid, Ancient Greek ἀλδαίνω (aldaínō), and, more closely in formation and semantics, Latin altus < PIE *h₂el-tó-s. Related to *aldaz and *alaną (Markey & Mees 2014: 4–9).