to make hard to learn, study 2 realizations
ACCEPTED Realization 1
type Derivation
language Russian
lexeme 1 твёрдый (tvёrdyj)
lexeme 2 затвердить (zatverdit')
meaning 1 hard, solid твердое вещество 'solid substance'
'solid substance'
direction
meaning 2 to learn something by heart затвердить урок
'to learn the lesson by heart'
reference BTS
comment
ACCEPTED Realization 2
type Polysemy
language Tigrinya
lexeme ʔaṣnəʕe
meaning 1 to strengthen, reinforce, to cement, secure, steady
direction
meaning 2 to study, read over, memorize, learn by heart ʔabärtiʕu ʔaṣnəʕe ‘to study hard, swot, be a grind’
reference
comment cf. ṣənuʕ ‘strong, tough, hard’. KT 2592