am

Etymology 1

From Middle English am, em, from Old English eam, eom (“am”), from Proto-West Germanic *im, from Proto-Germanic *immi, *izmi (“am”, form of the verb *wesaną (“to be; dwell”)), from Proto-Indo-European *h₁ésmi (“I am, I exist”). Cognate with Old Norse em (Old Swedish æm (“am”)), Gothic 𐌹𐌼 (im, “am”), Ancient Greek εἰμῐ́ (eimí, “am”), Old Armenian եմ (em, “am”), Albanian jam (“am”).

verb

1. first-person singular present indicative of be
   Marsha, I am in the kitchen! Audio (US) (file) 2016, VOA Learning English (public domain)

Etymology 2

adv

1. Alternative spelling of a.m.
   On 1 August 2014 at approximately 12 am, in Lingya and Chienchen Districts of Kaohsiung City, a series of explosions from underground pipelines and sewer system occurred. 2017, Huei-Ru Hsieh et al., “Lessons Learned from the 0801 Petrochemical Pipeline Explosions in Kaohsiung City”, in Fire Science and Technology 2015: The Proceedings of 10th Asia-Oceania Symposium on Fire Science and Technology, →DOI, →LCCN, →OCLC, page 183