Aries April 2 realizations
ACCEPTED Realization 1
type Borrowing
language 1 Sanskrit
language 2 Khmer
lexeme 1 meṣá (मेष)
lexeme 2 meisaa (មេសា)
meaning 1 ram, Aries
direction
meaning 2 April
reference SEAlang Khmer
comment
ACCEPTED Realization 2
type Derivation
language Thai
lexeme 1 mêet (เมษ)
lexeme 2 mee-sǎa-yon (เมษายน)
meaning 1 ram, sheep, Aries
direction
meaning 2 April
reference English Wiktionary SEAlang Thai
comment

From mêet +‎ อายน 'arrival'; literally 'arrival of the ram (Aries)'; believed to have been coined by Thewawong Waropakan (1858–1923) together with Phraya Si Sunthon Wohan (Noi Acharayangkun) (1822–1891); first used officially in the edict of Rama V dated 1 April 1890.