From Wiktionary, the free dictionary

From base (“short”).

Base

1. A surname transferred from the nickname.

• Abes, EABs, EBSA, baes, seba

• IPA^(key): /ˈbaːzə/
• Rhymes: -aːzə

From Middle High German base, from Old High German basa, from Proto-West Germanic *baswā, from Proto-Germanic *baswǭ (“father's sister; paternal aunt”). Compare Saterland Frisian Bääsje (“grandmother”), Dutch baas (“master; boss”). More at boss.

Base f (genitive Base, plural Basen)

1. (archaic) A female cousin.

   Synonyms: Cousine, Kusine

   Coordinate term: Vetter

2. (obsolete) paternal aunt

   Synonyms: Tante väterlicherseits, Vaterschwester

   Antonym: Muhme

• Klatschbase

19th c., backformation from Basen, plural of Basis, from Latin basis, from Ancient Greek βάσις (básis).

Base f (genitive Base, plural Basen)

1. (chemistry) base (compound that will neutralize an acid)

• “Base” in Digitales Wörterbuch der deutschen Sprache
• “Base” in Uni Leipzig: Wortschatz-Lexikon
• “Base (Chemie)” in Duden online
• “Base (Verwandte)” in Duden online

• (Standard Tagalog) IPA^(key): /ˈbase/ [ˈbaː.sɛ]
• Rhymes: -ase
• Syllabification: Ba‧se

Base (Baybayin spelling ᜊᜐᜒ)

1. a surname

• According to data collected by Forebears in 2014, Base is the 2,903^rd most common surname in the Philippines, occurring in 4,318 individuals.